From 5e40f32f66355975575740f4913be34361acfdb1 Mon Sep 17 00:00:00 2001
From: ExE Boss <3889017+ExE-Boss@users.noreply.github.com>
Date: Tue, 25 Feb 2020 14:15:00 +0100
Subject: [PATCH 1/2] =?UTF-8?q?fix(helpers):=20Use=C2=A0`hasOwnProperty.ca?=
 =?UTF-8?q?ll`?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/compiler/transformers/es2015.ts        | 2 +-
 src/compiler/transformers/module/module.ts | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/compiler/transformers/es2015.ts b/src/compiler/transformers/es2015.ts
index d3926778e48..47df7786d65 100644
--- a/src/compiler/transformers/es2015.ts
+++ b/src/compiler/transformers/es2015.ts
@@ -4316,7 +4316,7 @@ namespace ts {
                 var extendStatics = function (d, b) {
                     extendStatics = Object.setPrototypeOf ||
                         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-                        function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+                        function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
                     return extendStatics(d, b);
                 };
 
diff --git a/src/compiler/transformers/module/module.ts b/src/compiler/transformers/module/module.ts
index 895be21f988..fbccf2b2e3d 100644
--- a/src/compiler/transformers/module/module.ts
+++ b/src/compiler/transformers/module/module.ts
@@ -1881,7 +1881,7 @@ var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (
         priority: 2,
         text: `
             var __exportStar = (this && this.__exportStar) || function(m, exports) {
-                for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+                for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
             }`
     };
 
@@ -1909,7 +1909,7 @@ var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;
     var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    if (mod != null) for (var k in mod) if (Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
     __setModuleDefault(result, mod);
     return result;
 };`

From e2ece0409f05708de91a1c5bf05bf60a172ea580 Mon Sep 17 00:00:00 2001
From: ExE Boss <3889017+ExE-Boss@users.noreply.github.com>
Date: Tue, 25 Feb 2020 16:20:00 +0100
Subject: [PATCH 2/2] =?UTF-8?q?test(helpers):=20Update=C2=A0test=C2=A0base?=
 =?UTF-8?q?lines?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 ...straintsClassHeritageListMemberTypeAnnotations.js |  2 +-
 ...sWithInaccessibleTypeInTypeParameterConstraint.js |  2 +-
 .../baselines/reference/abstractClassInLocalScope.js |  2 +-
 .../reference/abstractClassInLocalScopeIsAbstract.js |  2 +-
 tests/baselines/reference/abstractProperty.js        |  2 +-
 .../reference/abstractPropertyInConstructor.js       |  2 +-
 .../baselines/reference/abstractPropertyNegative.js  |  2 +-
 .../reference/accessOverriddenBaseClassMember1.js    |  2 +-
 .../reference/accessorsOverrideProperty7.js          |  2 +-
 .../accessors_spec_section-4.5_inference.js          |  2 +-
 .../reference/aliasUsageInAccessorsOfClass.js        |  2 +-
 tests/baselines/reference/aliasUsageInArray.js       |  2 +-
 .../reference/aliasUsageInFunctionExpression.js      |  2 +-
 .../reference/aliasUsageInGenericFunction.js         |  2 +-
 .../reference/aliasUsageInIndexerOfClass.js          |  2 +-
 .../baselines/reference/aliasUsageInObjectLiteral.js |  2 +-
 .../baselines/reference/aliasUsageInOrExpression.js  |  2 +-
 .../aliasUsageInTypeArgumentOfExtendsClause.js       |  4 ++--
 .../baselines/reference/aliasUsageInVarAssignment.js |  2 +-
 .../baselines/reference/ambientShorthand_reExport.js |  2 +-
 .../reference/ambiguousOverloadResolution.js         |  2 +-
 .../reference/amdDeclarationEmitNoExtraDeclare.js    |  2 +-
 .../reference/anonClassDeclarationEmitIsAnon.js      |  4 ++--
 ...onymousClassDeclarationDoesntPrintWithReadonly.js |  2 +-
 tests/baselines/reference/apparentTypeSubtyping.js   |  2 +-
 tests/baselines/reference/apparentTypeSupertype.js   |  2 +-
 tests/baselines/reference/arrayAssignmentTest1.js    |  2 +-
 tests/baselines/reference/arrayAssignmentTest2.js    |  2 +-
 tests/baselines/reference/arrayBestCommonTypes.js    |  2 +-
 .../baselines/reference/arrayLiteralTypeInference.js |  2 +-
 tests/baselines/reference/arrayLiterals.js           |  2 +-
 .../reference/arrayLiteralsWithRecursiveGenerics.js  |  2 +-
 .../arrayOfSubtypeIsAssignableToReadonlyArray.js     |  2 +-
 tests/baselines/reference/arrowFunctionContexts.js   |  2 +-
 .../baselines/reference/assertionTypePredicates1.js  |  2 +-
 .../reference/assignmentCompatWithCallSignatures3.js |  2 +-
 .../reference/assignmentCompatWithCallSignatures4.js |  2 +-
 .../reference/assignmentCompatWithCallSignatures5.js |  2 +-
 .../reference/assignmentCompatWithCallSignatures6.js |  2 +-
 .../assignmentCompatWithConstructSignatures3.js      |  2 +-
 .../assignmentCompatWithConstructSignatures4.js      |  2 +-
 .../assignmentCompatWithConstructSignatures5.js      |  2 +-
 .../assignmentCompatWithConstructSignatures6.js      |  2 +-
 .../reference/assignmentCompatWithNumericIndexer.js  |  2 +-
 .../reference/assignmentCompatWithNumericIndexer3.js |  2 +-
 .../reference/assignmentCompatWithObjectMembers4.js  |  2 +-
 .../assignmentCompatWithObjectMembersOptionality.js  |  2 +-
 .../assignmentCompatWithObjectMembersOptionality2.js |  2 +-
 .../reference/assignmentCompatWithStringIndexer.js   |  2 +-
 tests/baselines/reference/assignmentLHSIsValue.js    |  2 +-
 .../baselines/reference/asyncImportedPromise_es5.js  |  2 +-
 tests/baselines/reference/autolift4.js               |  2 +-
 tests/baselines/reference/baseCheck.js               |  2 +-
 .../reference/baseClassImprovedMismatchErrors.js     |  2 +-
 .../baselines/reference/baseConstraintOfDecorator.js |  2 +-
 .../reference/baseExpressionTypeParameters.js        |  2 +-
 .../reference/baseIndexSignatureResolution.js        |  2 +-
 tests/baselines/reference/baseTypeOrderChecking.js   |  2 +-
 .../reference/baseTypeWrappingInstantiationChain.js  |  2 +-
 tests/baselines/reference/bases.js                   |  2 +-
 .../bestCommonTypeOfConditionalExpressions.js        |  2 +-
 .../bestCommonTypeOfConditionalExpressions2.js       |  2 +-
 tests/baselines/reference/bestCommonTypeOfTuple2.js  |  2 +-
 .../reference/callChainWithSuper(target=es5).js      |  2 +-
 .../callSignatureAssignabilityInInheritance2.js      |  2 +-
 .../callSignatureAssignabilityInInheritance3.js      |  2 +-
 .../callSignatureAssignabilityInInheritance4.js      |  2 +-
 .../callSignatureAssignabilityInInheritance5.js      |  2 +-
 .../callSignatureAssignabilityInInheritance6.js      |  2 +-
 tests/baselines/reference/callWithSpread.js          |  2 +-
 .../captureSuperPropertyAccessInSuperCall01.js       |  2 +-
 tests/baselines/reference/captureThisInSuperCall.js  |  2 +-
 tests/baselines/reference/castingTuple.js            |  2 +-
 tests/baselines/reference/chainedAssignment3.js      |  2 +-
 ...thTypeParameterConstrainedToOtherTypeParameter.js |  2 +-
 tests/baselines/reference/checkForObjectTooStrict.js |  2 +-
 .../reference/checkJsxChildrenCanBeTupleType.js      |  2 +-
 .../reference/checkJsxChildrenProperty12.js          |  2 +-
 .../reference/checkJsxChildrenProperty13.js          |  2 +-
 .../reference/checkJsxChildrenProperty14.js          |  2 +-
 .../baselines/reference/checkJsxChildrenProperty3.js |  2 +-
 .../baselines/reference/checkJsxChildrenProperty4.js |  2 +-
 .../baselines/reference/checkJsxChildrenProperty5.js |  2 +-
 .../baselines/reference/checkJsxChildrenProperty6.js |  2 +-
 .../baselines/reference/checkJsxChildrenProperty7.js |  2 +-
 .../baselines/reference/checkJsxChildrenProperty8.js |  2 +-
 .../checkJsxIntersectionElementPropsType.js          |  2 +-
 .../checkJsxSubtleSkipContextSensitiveBug.js         |  2 +-
 .../reference/checkSuperCallBeforeThisAccessing1.js  |  2 +-
 .../reference/checkSuperCallBeforeThisAccessing2.js  |  2 +-
 .../reference/checkSuperCallBeforeThisAccessing3.js  |  2 +-
 .../reference/checkSuperCallBeforeThisAccessing4.js  |  2 +-
 .../reference/checkSuperCallBeforeThisAccessing5.js  |  2 +-
 .../reference/checkSuperCallBeforeThisAccessing6.js  |  2 +-
 .../reference/checkSuperCallBeforeThisAccessing7.js  |  2 +-
 .../reference/checkSuperCallBeforeThisAccessing8.js  |  2 +-
 .../circularConstraintYieldsAppropriateError.js      |  2 +-
 tests/baselines/reference/circularImportAlias.js     |  2 +-
 .../reference/circularTypeofWithFunctionModule.js    |  2 +-
 .../classAbstractConstructorAssignability.js         |  2 +-
 .../baselines/reference/classAbstractCrashedOnce.js  |  2 +-
 tests/baselines/reference/classAbstractExtends.js    |  2 +-
 .../reference/classAbstractFactoryFunction.js        |  2 +-
 tests/baselines/reference/classAbstractGeneric.js    |  2 +-
 tests/baselines/reference/classAbstractInAModule.js  |  2 +-
 .../baselines/reference/classAbstractInheritance.js  |  2 +-
 .../reference/classAbstractInstantiations1.js        |  2 +-
 .../reference/classAbstractInstantiations2.js        |  2 +-
 .../reference/classAbstractOverrideWithAbstract.js   |  2 +-
 tests/baselines/reference/classAbstractSuperCalls.js |  2 +-
 .../reference/classAbstractUsingAbstractMethod1.js   |  2 +-
 .../reference/classAbstractUsingAbstractMethods2.js  |  2 +-
 .../reference/classConstructorAccessibility2.js      |  2 +-
 .../reference/classConstructorAccessibility4.js      |  2 +-
 .../reference/classConstructorAccessibility5.js      |  2 +-
 .../classConstructorParametersAccessibility.js       |  2 +-
 .../classConstructorParametersAccessibility2.js      |  2 +-
 .../classConstructorParametersAccessibility3.js      |  2 +-
 ...classDeclarationMergedInModuleWithContinuation.js |  2 +-
 .../reference/classDeclaredBeforeClassFactory.js     |  2 +-
 .../reference/classDoesNotDependOnBaseTypes.js       |  2 +-
 tests/baselines/reference/classExpression2.js        |  2 +-
 tests/baselines/reference/classExpression3.js        |  2 +-
 .../classExpressionExtendingAbstractClass.js         |  2 +-
 .../classExpressionInClassStaticDeclarations.js      |  2 +-
 .../baselines/reference/classExtendingBuiltinType.js |  2 +-
 tests/baselines/reference/classExtendingClass.js     |  2 +-
 .../reference/classExtendingClassLikeType.js         |  2 +-
 .../reference/classExtendingNonConstructor.js        |  2 +-
 tests/baselines/reference/classExtendingNull.js      |  2 +-
 tests/baselines/reference/classExtendingPrimitive.js |  2 +-
 .../baselines/reference/classExtendingPrimitive2.js  |  2 +-
 .../reference/classExtendingQualifiedName.js         |  2 +-
 .../reference/classExtendingQualifiedName2.js        |  2 +-
 tests/baselines/reference/classExtendsAcrossFiles.js |  4 ++--
 ...useClassMergedWithModuleNotReferingConstructor.js |  2 +-
 ...classExtendsClauseClassNotReferringConstructor.js |  2 +-
 .../reference/classExtendsEveryObjectType.js         |  2 +-
 .../reference/classExtendsEveryObjectType2.js        |  2 +-
 tests/baselines/reference/classExtendsInterface.js   |  2 +-
 .../reference/classExtendsInterfaceInExpression.js   |  2 +-
 .../reference/classExtendsInterfaceInModule.js       |  2 +-
 .../baselines/reference/classExtendsInterface_not.js |  2 +-
 tests/baselines/reference/classExtendsItself.js      |  2 +-
 .../reference/classExtendsItselfIndirectly.js        |  2 +-
 .../reference/classExtendsItselfIndirectly2.js       |  2 +-
 .../reference/classExtendsItselfIndirectly3.js       | 12 ++++++------
 .../reference/classExtendsMultipleBaseClasses.js     |  2 +-
 tests/baselines/reference/classExtendsNull.js        |  2 +-
 .../classExtendsShadowedConstructorFunction.js       |  2 +-
 .../classExtendsValidConstructorFunction.js          |  2 +-
 .../baselines/reference/classExtensionNameOutput.js  |  2 +-
 .../reference/classHeritageWithTrailingSeparator.js  |  2 +-
 tests/baselines/reference/classImplementsClass2.js   |  2 +-
 tests/baselines/reference/classImplementsClass3.js   |  2 +-
 tests/baselines/reference/classImplementsClass4.js   |  2 +-
 tests/baselines/reference/classImplementsClass5.js   |  2 +-
 tests/baselines/reference/classImplementsClass6.js   |  2 +-
 tests/baselines/reference/classIndexer3.js           |  2 +-
 tests/baselines/reference/classInheritence.js        |  2 +-
 .../baselines/reference/classIsSubtypeOfBaseType.js  |  2 +-
 .../classMergedWithInterfaceMultipleBasesNoError.js  |  2 +-
 tests/baselines/reference/classOrder2.js             |  2 +-
 tests/baselines/reference/classOrderBug.js           |  2 +-
 tests/baselines/reference/classSideInheritance1.js   |  2 +-
 tests/baselines/reference/classSideInheritance2.js   |  2 +-
 tests/baselines/reference/classSideInheritance3.js   |  2 +-
 tests/baselines/reference/classUpdateTests.js        |  2 +-
 .../reference/classUsedBeforeInitializedVariables.js |  2 +-
 .../reference/classWithBaseClassButNoConstructor.js  |  2 +-
 tests/baselines/reference/classWithConstructors.js   |  2 +-
 .../reference/classWithProtectedProperty.js          |  2 +-
 tests/baselines/reference/classWithStaticMembers.js  |  2 +-
 tests/baselines/reference/classdecl.js               |  2 +-
 .../reference/cloduleGenericOnSelfMember.js          |  2 +-
 tests/baselines/reference/clodulesDerivedClasses.js  |  2 +-
 .../collisionSuperAndLocalFunctionInAccessors.js     |  2 +-
 .../collisionSuperAndLocalFunctionInConstructor.js   |  2 +-
 .../collisionSuperAndLocalFunctionInMethod.js        |  2 +-
 .../collisionSuperAndLocalFunctionInProperty.js      |  2 +-
 .../collisionSuperAndLocalVarInAccessors.js          |  2 +-
 .../collisionSuperAndLocalVarInConstructor.js        |  2 +-
 .../reference/collisionSuperAndLocalVarInMethod.js   |  2 +-
 .../reference/collisionSuperAndLocalVarInProperty.js |  2 +-
 .../reference/collisionSuperAndNameResolution.js     |  2 +-
 .../reference/collisionSuperAndParameter.js          |  2 +-
 .../reference/collisionSuperAndParameter1.js         |  2 +-
 ...isionSuperAndPropertyNameAsConstuctorParameter.js |  2 +-
 ...onThisExpressionAndLocalVarWithSuperExperssion.js |  2 +-
 tests/baselines/reference/commentsInheritance.js     |  2 +-
 .../comparisonOperatorWithIdenticalObjects.js        |  2 +-
 ...eratorWithNoRelationshipObjectsOnCallSignature.js |  2 +-
 ...ithNoRelationshipObjectsOnConstructorSignature.js |  2 +-
 ...ratorWithNoRelationshipObjectsOnIndexSignature.js |  2 +-
 ...RelationshipObjectsOnInstantiatedCallSignature.js |  2 +-
 ...nshipObjectsOnInstantiatedConstructorSignature.js |  2 +-
 ...arisonOperatorWithSubtypeObjectOnCallSignature.js |  2 +-
 ...peratorWithSubtypeObjectOnConstructorSignature.js |  2 +-
 ...risonOperatorWithSubtypeObjectOnIndexSignature.js |  2 +-
 ...orWithSubtypeObjectOnInstantiatedCallSignature.js |  2 +-
 ...ubtypeObjectOnInstantiatedConstructorSignature.js |  2 +-
 .../comparisonOperatorWithSubtypeObjectOnProperty.js |  2 +-
 .../baselines/reference/complexClassRelationships.js |  2 +-
 .../complicatedGenericRecursiveBaseClassReference.js |  2 +-
 .../reference/compoundAssignmentLHSIsValue.js        |  2 +-
 .../compoundExponentiationAssignmentLHSIsValue.js    |  2 +-
 .../reference/computedPropertyNames24_ES5.js         |  2 +-
 .../reference/computedPropertyNames25_ES5.js         |  2 +-
 .../reference/computedPropertyNames26_ES5.js         |  2 +-
 .../reference/computedPropertyNames27_ES5.js         |  2 +-
 .../reference/computedPropertyNames28_ES5.js         |  2 +-
 .../reference/computedPropertyNames30_ES5.js         |  2 +-
 .../reference/computedPropertyNames31_ES5.js         |  2 +-
 .../reference/computedPropertyNames43_ES5.js         |  2 +-
 .../reference/computedPropertyNames44_ES5.js         |  2 +-
 .../reference/computedPropertyNames45_ES5.js         |  2 +-
 .../reference/conditionalOperatorWithIdenticalBCT.js |  2 +-
 .../conditionalOperatorWithoutIdenticalBCT.js        |  2 +-
 .../baselines/reference/constantOverloadFunction.js  |  2 +-
 .../constantOverloadFunctionNoSubtypeError.js        |  2 +-
 .../constraintCheckInGenericBaseTypeReference.js     |  2 +-
 .../constructSignatureAssignabilityInInheritance2.js |  2 +-
 .../constructSignatureAssignabilityInInheritance3.js |  2 +-
 .../constructSignatureAssignabilityInInheritance4.js |  2 +-
 .../constructSignatureAssignabilityInInheritance5.js |  2 +-
 .../constructSignatureAssignabilityInInheritance6.js |  2 +-
 tests/baselines/reference/constructorArgs.js         |  2 +-
 .../constructorFunctionTypeIsAssignableToBaseType.js |  2 +-
 ...constructorFunctionTypeIsAssignableToBaseType2.js |  2 +-
 .../reference/constructorHasPrototypeProperty.js     |  2 +-
 tests/baselines/reference/constructorOverloads2.js   |  2 +-
 tests/baselines/reference/constructorOverloads3.js   |  2 +-
 .../reference/constructorWithCapturedSuper.js        |  2 +-
 .../constructorWithIncompleteTypeAnnotation.js       |  2 +-
 .../reference/contextualTypingArrayOfLambdas.js      |  2 +-
 .../contextualTypingOfConditionalExpression.js       |  2 +-
 .../contextualTypingOfConditionalExpression2.js      |  2 +-
 .../reference/controlFlowSuperPropertyAccess.js      |  2 +-
 ...ashInsourcePropertyIsRelatableToTargetProperty.js |  2 +-
 .../baselines/reference/declFileClassExtendsNull.js  |  2 +-
 .../declFileForFunctionTypeAsTypeParameter.js        |  2 +-
 .../declFileGenericClassWithGenericExtendedClass.js  |  2 +-
 tests/baselines/reference/declFileGenericType.js     |  2 +-
 tests/baselines/reference/declFileGenericType2.js    |  2 +-
 ...ameConflictingWithClassReferredByExtendsClause.js |  2 +-
 ...thExtendsClauseThatHasItsContainerNameConflict.js |  2 +-
 .../reference/declarationEmitExpressionInExtends.js  |  2 +-
 .../reference/declarationEmitExpressionInExtends2.js |  2 +-
 .../reference/declarationEmitExpressionInExtends3.js |  2 +-
 .../reference/declarationEmitExpressionInExtends4.js |  2 +-
 .../reference/declarationEmitExpressionInExtends5.js |  2 +-
 ...EmitForDefaultExportClassExtendingExpression01.js |  2 +-
 .../declarationEmitLocalClassDeclarationMixin.js     |  2 +-
 .../reference/declarationEmitNameConflicts3.js       |  2 +-
 .../declarationEmitPrivateNameCausesError.js         |  2 +-
 ...tionEmitPrivateSymbolCausesVarDeclarationEmit2.js |  2 +-
 .../reference/declarationEmitProtectedMembers.js     |  2 +-
 .../declarationEmitReexportedSymlinkReference.js     |  2 +-
 .../declarationEmitReexportedSymlinkReference2.js    |  2 +-
 .../declarationEmitReexportedSymlinkReference3.js    |  2 +-
 .../reference/declarationEmitThisPredicates01.js     |  2 +-
 ...declarationEmitThisPredicatesWithPrivateName01.js |  2 +-
 .../reference/declarationNoDanglingGenerics.js       |  2 +-
 .../declarationsForFileShadowingGlobalNoError.js     |  2 +-
 tests/baselines/reference/declareDottedExtend.js     |  2 +-
 tests/baselines/reference/decoratorOnClass9.js       |  2 +-
 .../reference/decoratorOnClassConstructor2.js        |  2 +-
 .../reference/decoratorOnClassConstructor3.js        |  2 +-
 .../reference/decoratorOnClassConstructor4.js        |  2 +-
 .../baselines/reference/decoratorOnClassMethod12.js  |  2 +-
 .../defaultPropsEmptyCurlyBecomesAnyForJs.js         |  4 ++--
 .../reference/defineProperty(target=es5).js          |  2 +-
 .../derivedClassConstructorWithExplicitReturns01.js  |  2 +-
 ...assConstructorWithExplicitReturns01.sourcemap.txt |  2 +-
 .../derivedClassConstructorWithoutSuperCall.js       |  2 +-
 ...derivedClassFunctionOverridesBaseClassAccessor.js |  2 +-
 .../derivedClassIncludesInheritedMembers.js          |  2 +-
 ...ssOverridesIndexersWithAssignmentCompatibility.js |  2 +-
 .../derivedClassOverridesPrivateFunction1.js         |  2 +-
 .../reference/derivedClassOverridesPrivates.js       |  2 +-
 .../derivedClassOverridesProtectedMembers.js         |  2 +-
 .../derivedClassOverridesProtectedMembers2.js        |  2 +-
 .../derivedClassOverridesProtectedMembers3.js        |  2 +-
 .../derivedClassOverridesProtectedMembers4.js        |  2 +-
 .../reference/derivedClassOverridesPublicMembers.js  |  2 +-
 .../reference/derivedClassOverridesWithoutSubtype.js |  2 +-
 .../reference/derivedClassParameterProperties.js     |  2 +-
 .../derivedClassSuperCallsInNonConstructorMembers.js |  2 +-
 .../reference/derivedClassSuperCallsWithThisArg.js   |  2 +-
 .../baselines/reference/derivedClassTransitivity.js  |  2 +-
 .../baselines/reference/derivedClassTransitivity2.js |  2 +-
 .../baselines/reference/derivedClassTransitivity3.js |  2 +-
 .../baselines/reference/derivedClassTransitivity4.js |  2 +-
 tests/baselines/reference/derivedClassWithAny.js     |  2 +-
 ...sWithPrivateInstanceShadowingProtectedInstance.js |  2 +-
 ...lassWithPrivateInstanceShadowingPublicInstance.js |  2 +-
 ...ClassWithPrivateStaticShadowingProtectedStatic.js |  2 +-
 ...vedClassWithPrivateStaticShadowingPublicStatic.js |  2 +-
 .../derivedClassWithoutExplicitConstructor.js        |  2 +-
 .../derivedClassWithoutExplicitConstructor2.js       |  2 +-
 .../derivedClassWithoutExplicitConstructor3.js       |  2 +-
 tests/baselines/reference/derivedClasses.js          |  2 +-
 .../reference/derivedGenericClassWithAny.js          |  2 +-
 ...peAccessesHiddenBaseCallViaSuperPropertyAccess.js |  2 +-
 .../derivedTypeDoesNotRequireExtendsClause.js        |  2 +-
 .../derivedUninitializedPropertyDeclaration.js       |  2 +-
 .../reference/destructuringParameterDeclaration5.js  |  2 +-
 .../doubleMixinConditionalTypeBaseClassWorks.js      |  2 +-
 .../reference/doubleUnderscoreExportStarConflict.js  |  2 +-
 .../reference/emitBundleWithPrologueDirectives1.js   |  2 +-
 tests/baselines/reference/emitBundleWithShebang1.js  |  2 +-
 tests/baselines/reference/emitBundleWithShebang2.js  |  2 +-
 .../emitBundleWithShebangAndPrologueDirectives1.js   |  2 +-
 .../emitBundleWithShebangAndPrologueDirectives2.js   |  2 +-
 ...DeclarationWithPropertyAccessInHeritageClause1.js |  2 +-
 .../emitClassExpressionInDeclarationFile.js          |  2 +-
 .../emitClassExpressionInDeclarationFile2.js         |  2 +-
 ...perCallBeforeEmitParameterPropertyDeclaration1.js |  2 +-
 .../emitSuperCallBeforeEmitPropertyDeclaration1.js   |  2 +-
 ...rtyDeclarationAndParameterPropertyDeclaration1.js |  2 +-
 .../baselines/reference/emitThisInSuperMethodCall.js |  2 +-
 .../emitter.asyncGenerators.classMethods.es5.js      |  2 +-
 tests/baselines/reference/emptyModuleName.js         |  2 +-
 .../errorForwardReferenceForwadingConstructor.js     |  2 +-
 tests/baselines/reference/errorSuperCalls.js         |  2 +-
 .../baselines/reference/errorSuperPropertyAccess.js  |  2 +-
 .../reference/errorsInGenericTypeReference.js        |  2 +-
 tests/baselines/reference/es6ClassSuperCodegenBug.js |  2 +-
 tests/baselines/reference/es6ClassTest.js            |  2 +-
 tests/baselines/reference/es6ClassTest2.js           |  2 +-
 tests/baselines/reference/es6ClassTest7.js           |  2 +-
 tests/baselines/reference/es6ExportAllInEs5.js       |  2 +-
 tests/baselines/reference/es6ExportEqualsInterop.js  |  2 +-
 tests/baselines/reference/esModuleInterop.js         |  2 +-
 .../baselines/reference/esModuleInteropImportCall.js |  2 +-
 .../reference/esModuleInteropImportNamespace.js      |  2 +-
 .../reference/esModuleInteropNamedDefaultImports.js  |  2 +-
 .../esModuleInteropPrettyErrorRelatedInformation.js  |  2 +-
 ...oduleInteropUsesExportStarWhenDefaultPlusNames.js |  2 +-
 .../esModuleInteropWithExportStar(target=es3).js     |  4 ++--
 .../esModuleInteropWithExportStar(target=es5).js     |  4 ++--
 .../baselines/reference/esModuleIntersectionCrash.js |  2 +-
 .../reference/exportAsNamespace2(module=amd).js      |  2 +-
 .../reference/exportAsNamespace2(module=commonjs).js |  4 ++--
 .../reference/exportAsNamespace2(module=umd).js      |  4 ++--
 .../reference/exportAsNamespace3(module=amd).js      |  2 +-
 .../reference/exportAsNamespace3(module=commonjs).js |  4 ++--
 .../reference/exportAsNamespace3(module=umd).js      |  4 ++--
 .../reference/exportAssignmentOfGenericType1.js      |  2 +-
 .../reference/exportClassExtendingIntersection.js    |  4 ++--
 .../reference/exportDeclarationInInternalModule.js   |  2 +-
 tests/baselines/reference/exportDefault.js           |  4 ++--
 .../reference/exportDefaultAbstractClass.js          |  4 ++--
 tests/baselines/reference/exportNamespace1.js        |  2 +-
 tests/baselines/reference/exportStar-amd.js          |  2 +-
 tests/baselines/reference/exportStar.js              |  2 +-
 tests/baselines/reference/exportStarForValues7.js    |  2 +-
 tests/baselines/reference/exportStarForValues8.js    |  4 ++--
 tests/baselines/reference/exportStarForValues9.js    |  4 ++--
 .../baselines/reference/exportStarFromEmptyModule.js |  2 +-
 tests/baselines/reference/extBaseClass1.js           |  2 +-
 tests/baselines/reference/extBaseClass2.js           |  2 +-
 .../reference/extendAndImplementTheSameBaseType.js   |  2 +-
 .../reference/extendAndImplementTheSameBaseType2.js  |  2 +-
 .../reference/extendBaseClassBeforeItsDeclared.js    |  2 +-
 .../reference/extendClassExpressionFromModule.js     |  2 +-
 .../reference/extendConstructSignatureInInterface.js |  2 +-
 tests/baselines/reference/extendFromAny.js           |  2 +-
 tests/baselines/reference/extendNonClassSymbol1.js   |  2 +-
 tests/baselines/reference/extendNonClassSymbol2.js   |  2 +-
 .../reference/extendPrivateConstructorClass.js       |  2 +-
 .../extendingClassFromAliasAndUsageInIndexer.js      |  4 ++--
 tests/baselines/reference/extendsClause.js           |  2 +-
 .../baselines/reference/extendsClauseAlreadySeen.js  |  2 +-
 .../baselines/reference/extendsClauseAlreadySeen2.js |  2 +-
 tests/baselines/reference/extendsUntypedModule.js    |  2 +-
 tests/baselines/reference/fluentClasses.js           |  2 +-
 tests/baselines/reference/for-inStatements.js        |  2 +-
 tests/baselines/reference/for-inStatementsInvalid.js |  2 +-
 .../reference/forStatementsMultipleInvalidDecl.js    |  2 +-
 .../reference/functionImplementationErrors.js        |  2 +-
 tests/baselines/reference/functionImplementations.js |  2 +-
 .../reference/functionSubtypingOfVarArgs.js          |  2 +-
 .../reference/functionSubtypingOfVarArgs2.js         |  2 +-
 .../baselines/reference/generatedContextualTyping.js |  2 +-
 .../reference/genericBaseClassLiteralProperty.js     |  2 +-
 .../reference/genericBaseClassLiteralProperty2.js    |  2 +-
 ...enericCallWithConstraintsTypeArgumentInference.js |  2 +-
 .../reference/genericCallWithObjectTypeArgs2.js      |  2 +-
 .../genericCallWithObjectTypeArgsAndConstraints2.js  |  2 +-
 .../genericCallWithObjectTypeArgsAndConstraints3.js  |  2 +-
 .../reference/genericCallbacksAndClassHierarchy.js   |  2 +-
 .../reference/genericClassExpressionInFunction.js    |  2 +-
 ...ricClassInheritsConstructorFromNonGenericClass.js |  2 +-
 .../genericClassPropertyInheritanceSpecialization.js |  2 +-
 .../baselines/reference/genericClassStaticMethod.js  |  2 +-
 tests/baselines/reference/genericClasses3.js         |  2 +-
 .../genericConstraintOnExtendedBuiltinTypes.js       |  2 +-
 .../genericConstraintOnExtendedBuiltinTypes2.js      |  2 +-
 .../genericDerivedTypeWithSpecializedBase.js         |  2 +-
 .../genericDerivedTypeWithSpecializedBase2.js        |  2 +-
 .../reference/genericInheritedDefaultConstructors.js |  2 +-
 .../baselines/reference/genericPrototypeProperty2.js |  2 +-
 .../baselines/reference/genericPrototypeProperty3.js |  2 +-
 .../genericRecursiveImplicitConstructorErrors2.js    |  2 +-
 .../genericRecursiveImplicitConstructorErrors3.js    |  2 +-
 tests/baselines/reference/genericTypeAssertions2.js  |  2 +-
 tests/baselines/reference/genericTypeAssertions4.js  |  2 +-
 tests/baselines/reference/genericTypeAssertions6.js  |  2 +-
 tests/baselines/reference/genericTypeConstraints.js  |  2 +-
 .../genericTypeReferenceWithoutTypeArgument.js       |  2 +-
 .../genericTypeReferenceWithoutTypeArgument2.js      |  2 +-
 .../genericWithIndexerOfTypeParameterType2.js        |  2 +-
 .../reference/heterogeneousArrayLiterals.js          |  2 +-
 tests/baselines/reference/ifDoWhileStatements.js     |  2 +-
 .../reference/illegalSuperCallsInConstructor.js      |  2 +-
 .../reference/implementClausePrecedingExtends.js     |  2 +-
 ...ementingAnInterfaceExtendingClassWithPrivates2.js |  2 +-
 ...mentingAnInterfaceExtendingClassWithProtecteds.js |  2 +-
 tests/baselines/reference/importAsBaseClass.js       |  2 +-
 tests/baselines/reference/importEquals1.js           |  2 +-
 tests/baselines/reference/importEquals2.js           |  2 +-
 tests/baselines/reference/importHelpers.js           |  2 +-
 tests/baselines/reference/importHelpersNoHelpers.js  |  2 +-
 tests/baselines/reference/importHelpersNoModule.js   |  2 +-
 .../reference/importNotElidedWhenNotFound.js         |  2 +-
 tests/baselines/reference/importShadowsGlobalName.js |  2 +-
 .../baselines/reference/importUsedInExtendsList1.js  |  2 +-
 tests/baselines/reference/indexedAccessRelation.js   |  2 +-
 .../reference/indexedAccessTypeConstraints.js        |  2 +-
 tests/baselines/reference/indexerConstraints2.js     |  2 +-
 tests/baselines/reference/indirectSelfReference.js   |  2 +-
 .../reference/indirectSelfReferenceGeneric.js        |  2 +-
 .../infinitelyExpandingTypesNonGenericBase.js        |  2 +-
 .../reference/inheritFromGenericTypeParameter.js     |  2 +-
 ...inheritSameNamePrivatePropertiesFromSameOrigin.js |  2 +-
 tests/baselines/reference/inheritance.js             |  2 +-
 tests/baselines/reference/inheritance1.js            |  2 +-
 .../inheritanceGrandParentPrivateMemberCollision.js  |  2 +-
 ...ndParentPrivateMemberCollisionWithPublicMember.js |  2 +-
 ...ndParentPublicMemberCollisionWithPrivateMember.js |  2 +-
 .../inheritanceMemberAccessorOverridingAccessor.js   |  2 +-
 .../inheritanceMemberAccessorOverridingMethod.js     |  2 +-
 .../inheritanceMemberAccessorOverridingProperty.js   |  2 +-
 .../inheritanceMemberFuncOverridingAccessor.js       |  2 +-
 .../inheritanceMemberFuncOverridingMethod.js         |  2 +-
 .../inheritanceMemberFuncOverridingProperty.js       |  2 +-
 .../inheritanceMemberPropertyOverridingAccessor.js   |  2 +-
 .../inheritanceMemberPropertyOverridingMethod.js     |  2 +-
 .../inheritanceMemberPropertyOverridingProperty.js   |  2 +-
 .../inheritanceOfGenericConstructorMethod1.js        |  2 +-
 .../inheritanceOfGenericConstructorMethod2.js        |  2 +-
 .../inheritanceStaticAccessorOverridingAccessor.js   |  2 +-
 .../inheritanceStaticAccessorOverridingMethod.js     |  2 +-
 .../inheritanceStaticAccessorOverridingProperty.js   |  2 +-
 .../inheritanceStaticFuncOverridingAccessor.js       |  2 +-
 ...eritanceStaticFuncOverridingAccessorOfFuncType.js |  2 +-
 .../inheritanceStaticFuncOverridingMethod.js         |  2 +-
 .../inheritanceStaticFuncOverridingProperty.js       |  2 +-
 ...eritanceStaticFuncOverridingPropertyOfFuncType.js |  2 +-
 ...itanceStaticFunctionOverridingInstanceProperty.js |  2 +-
 .../reference/inheritanceStaticMembersCompatible.js  |  2 +-
 .../inheritanceStaticMembersIncompatible.js          |  2 +-
 .../inheritanceStaticPropertyOverridingAccessor.js   |  2 +-
 .../inheritanceStaticPropertyOverridingMethod.js     |  2 +-
 .../inheritanceStaticPropertyOverridingProperty.js   |  2 +-
 .../reference/inheritedConstructorWithRestParams.js  |  2 +-
 .../reference/inheritedConstructorWithRestParams2.js |  2 +-
 .../reference/inheritedModuleMembersForClodule.js    |  2 +-
 .../reference/inlineJsxFactoryDeclarations.js        |  2 +-
 tests/baselines/reference/instanceOfAssignability.js |  2 +-
 .../instancePropertiesInheritedIntoClassType.js      |  2 +-
 tests/baselines/reference/instanceSubtypeCheck2.js   |  2 +-
 .../instanceofWithStructurallyIdenticalTypes.js      |  2 +-
 .../instantiatedReturnTypeContravariance.js          |  2 +-
 tests/baselines/reference/interfaceClassMerging.js   |  2 +-
 tests/baselines/reference/interfaceClassMerging2.js  |  2 +-
 tests/baselines/reference/interfaceExtendsClass1.js  |  2 +-
 .../reference/interfaceExtendsClassWithPrivate1.js   |  2 +-
 .../reference/interfaceExtendsClassWithPrivate2.js   |  2 +-
 .../reference/interfaceExtendsObjectIntersection.js  |  2 +-
 .../interfaceExtendsObjectIntersectionErrors.js      |  2 +-
 .../baselines/reference/interfaceImplementation8.js  |  2 +-
 .../invalidModuleWithStatementsOfEveryKind.js        |  2 +-
 .../reference/invalidMultipleVariableDeclarations.js |  2 +-
 tests/baselines/reference/invalidReturnStatements.js |  2 +-
 .../reference/isolatedModulesImportExportElision.js  |  2 +-
 .../jsDeclarationsClassExtendsVisibility.js          |  2 +-
 tests/baselines/reference/jsDeclarationsClasses.js   |  2 +-
 .../baselines/reference/jsDeclarationsClassesErr.js  |  2 +-
 tests/baselines/reference/jsDeclarationsDefault.js   |  2 +-
 .../baselines/reference/jsDeclarationsExportForms.js |  4 ++--
 .../reference/jsDeclarationsExportFormsErr.js        |  2 +-
 .../jsNoImplicitAnyNoCascadingReferenceErrors.js     |  2 +-
 tests/baselines/reference/jsdocTypeTagCast.js        |  2 +-
 .../reference/jsxCallbackWithDestructuring.js        |  2 +-
 ...ngleChildConfusableWithMultipleChildrenNoError.js |  2 +-
 tests/baselines/reference/jsxHasLiteralType.js       |  2 +-
 tests/baselines/reference/jsxInExtendsClause.js      |  2 +-
 tests/baselines/reference/jsxViaImport.2.js          |  2 +-
 tests/baselines/reference/jsxViaImport.js            |  2 +-
 tests/baselines/reference/keyofAndIndexedAccess.js   |  2 +-
 tests/baselines/reference/lambdaArgCrash.js          |  2 +-
 tests/baselines/reference/lift.js                    |  2 +-
 tests/baselines/reference/localTypes1.js             |  2 +-
 tests/baselines/reference/m7Bugs.js                  |  2 +-
 .../reference/mappedTypePartialConstraints.js        |  2 +-
 tests/baselines/reference/mergedDeclarations5.js     |  2 +-
 tests/baselines/reference/mergedDeclarations6.js     |  2 +-
 .../reference/mergedInheritedClassInterface.js       |  2 +-
 .../mergedInheritedMembersSatisfyAbstractBase.js     |  2 +-
 .../mergedInterfacesWithInheritedPrivates2.js        |  2 +-
 .../mergedInterfacesWithInheritedPrivates3.js        |  2 +-
 .../reference/missingPropertiesOfClassExpression.js  |  2 +-
 tests/baselines/reference/mixinAccessModifiers.js    |  2 +-
 tests/baselines/reference/mixinClassesAnnotated.js   |  2 +-
 tests/baselines/reference/mixinClassesAnonymous.js   |  2 +-
 tests/baselines/reference/mixinClassesMembers.js     |  2 +-
 .../reference/mixinIntersectionIsValidbaseType.js    |  2 +-
 .../baselines/reference/mixinPrivateAndProtected.js  |  2 +-
 .../reference/mixingApparentTypeOverrides.js         |  2 +-
 tests/baselines/reference/moduleAsBaseType.js        |  2 +-
 .../moduleImportedForTypeArgumentPosition.js         |  2 +-
 tests/baselines/reference/moduleNoneOutFile.js       |  2 +-
 .../moduleSameValueDuplicateExportedBindings1.js     |  4 ++--
 .../moduleSameValueDuplicateExportedBindings2.js     |  2 +-
 .../reference/moduleWithStatementsOfEveryKind.js     |  2 +-
 tests/baselines/reference/multipleInheritance.js     |  2 +-
 .../reference/mutuallyRecursiveGenericBaseTypes2.js  |  2 +-
 .../reference/mutuallyRecursiveInference.js          |  2 +-
 tests/baselines/reference/narrowingOfDottedNames.js  |  2 +-
 .../baselines/reference/neverReturningFunctions1.js  |  2 +-
 tests/baselines/reference/newTarget.es5.js           |  2 +-
 tests/baselines/reference/noCrashOnMixin.js          |  2 +-
 .../reference/noImplicitAnyMissingGetAccessor.js     |  2 +-
 .../reference/noImplicitAnyMissingSetAccessor.js     |  2 +-
 .../nonGenericClassExtendingGenericClassWithAny.js   |  2 +-
 .../numericIndexerConstrainsPropertyDeclarations2.js |  2 +-
 .../baselines/reference/numericIndexerConstraint3.js |  2 +-
 .../baselines/reference/numericIndexerConstraint4.js |  2 +-
 tests/baselines/reference/numericIndexerTyping2.js   |  2 +-
 .../objectCreationOfElementAccessExpression.js       |  2 +-
 .../objectTypeHidingMembersOfExtendedObject.js       |  2 +-
 .../objectTypesIdentityWithNumericIndexers1.js       |  2 +-
 .../objectTypesIdentityWithNumericIndexers2.js       |  2 +-
 .../objectTypesIdentityWithNumericIndexers3.js       |  2 +-
 .../reference/objectTypesIdentityWithPrivates.js     |  2 +-
 .../reference/objectTypesIdentityWithPrivates2.js    |  2 +-
 .../reference/objectTypesIdentityWithPrivates3.js    |  2 +-
 .../objectTypesIdentityWithStringIndexers.js         |  2 +-
 .../objectTypesIdentityWithStringIndexers2.js        |  2 +-
 .../reference/optionalConstructorArgInSuper.js       |  2 +-
 tests/baselines/reference/optionalMethods.js         |  2 +-
 tests/baselines/reference/optionalParamArgsTest.js   |  2 +-
 tests/baselines/reference/optionalParamInOverride.js |  2 +-
 .../baselines/reference/optionalParameterProperty.js |  2 +-
 tests/baselines/reference/outModuleConcatAmd.js      |  2 +-
 .../reference/outModuleConcatAmd.sourcemap.txt       |  2 +-
 tests/baselines/reference/outModuleConcatSystem.js   |  2 +-
 .../reference/outModuleConcatSystem.sourcemap.txt    |  2 +-
 .../baselines/reference/outModuleTripleSlashRefs.js  |  2 +-
 .../reference/outModuleTripleSlashRefs.sourcemap.txt |  2 +-
 tests/baselines/reference/overload1.js               |  2 +-
 .../reference/overloadOnConstConstraintChecks1.js    |  2 +-
 .../reference/overloadOnConstConstraintChecks2.js    |  2 +-
 .../reference/overloadOnConstConstraintChecks3.js    |  2 +-
 .../reference/overloadOnConstConstraintChecks4.js    |  2 +-
 .../reference/overloadOnConstantsInvalidOverload1.js |  2 +-
 tests/baselines/reference/overloadResolution.js      |  2 +-
 .../reference/overloadResolutionClassConstructors.js |  2 +-
 .../reference/overloadResolutionConstructors.js      |  2 +-
 tests/baselines/reference/overloadingOnConstants1.js |  2 +-
 tests/baselines/reference/overloadingOnConstants2.js |  2 +-
 .../reference/overrideBaseIntersectionMethod.js      |  2 +-
 .../reference/overridingPrivateStaticMembers.js      |  2 +-
 .../reference/parseErrorInHeritageClause1.js         |  2 +-
 tests/baselines/reference/parser509630.js            |  2 +-
 tests/baselines/reference/parserAstSpans1.js         |  2 +-
 tests/baselines/reference/parserClassDeclaration1.js |  2 +-
 tests/baselines/reference/parserClassDeclaration3.js |  2 +-
 tests/baselines/reference/parserClassDeclaration4.js |  2 +-
 tests/baselines/reference/parserClassDeclaration5.js |  2 +-
 tests/baselines/reference/parserClassDeclaration6.js |  2 +-
 ...parserErrorRecovery_ExtendsOrImplementsClause2.js |  2 +-
 ...parserErrorRecovery_ExtendsOrImplementsClause4.js |  2 +-
 ...parserErrorRecovery_ExtendsOrImplementsClause5.js |  2 +-
 .../reference/parserGenericsInTypeContexts1.js       |  2 +-
 .../reference/parserGenericsInTypeContexts2.js       |  2 +-
 tests/baselines/reference/parserRealSource10.js      |  2 +-
 tests/baselines/reference/parserRealSource11.js      |  2 +-
 tests/baselines/reference/parserharness.js           |  2 +-
 .../partiallyAnnotatedFunctionInferenceError.js      |  2 +-
 ...llyAnnotatedFunctionInferenceWithTypeParameter.js |  2 +-
 tests/baselines/reference/primitiveMembers.js        |  2 +-
 tests/baselines/reference/privacyClass.js            |  2 +-
 .../reference/privacyClassExtendsClauseDeclFile.js   |  4 ++--
 tests/baselines/reference/privacyGloClass.js         |  2 +-
 .../baselines/reference/privateAccessInSubclass1.js  |  2 +-
 .../reference/privateInstanceMemberAccessibility.js  |  2 +-
 ...eProtectedMembersAreNotAccessibleDestructuring.js |  2 +-
 .../reference/privateStaticMemberAccessibility.js    |  2 +-
 .../privateStaticNotAccessibleInClodule2.js          |  2 +-
 .../amd/testGlo.js                                   |  2 +-
 .../node/testGlo.js                                  |  2 +-
 .../reference/project/prologueEmit/amd/out.js        |  2 +-
 .../reference/project/prologueEmit/node/out.js       |  2 +-
 .../quotesInFileAndDirectoryNames/amd/m'ain.js       |  2 +-
 .../quotesInFileAndDirectoryNames/node/m'ain.js      |  2 +-
 tests/baselines/reference/propertiesAndIndexers.js   |  2 +-
 tests/baselines/reference/propertyAccess.js          |  2 +-
 .../propertyAccessOnTypeParameterWithConstraints2.js |  2 +-
 .../propertyAccessOnTypeParameterWithConstraints3.js |  2 +-
 .../propertyAccessOnTypeParameterWithConstraints5.js |  2 +-
 .../reference/propertyOverridesAccessors4.js         |  2 +-
 .../reference/propertyOverridingPrototype.js         |  2 +-
 ...tedClassPropertyAccessibleWithinNestedSubclass.js |  2 +-
 ...edClassPropertyAccessibleWithinNestedSubclass1.js |  2 +-
 ...protectedClassPropertyAccessibleWithinSubclass.js |  2 +-
 ...rotectedClassPropertyAccessibleWithinSubclass2.js |  2 +-
 ...rotectedClassPropertyAccessibleWithinSubclass3.js |  2 +-
 .../protectedInstanceMemberAccessibility.js          |  2 +-
 tests/baselines/reference/protectedMembers.js        |  2 +-
 ...tedStaticClassPropertyAccessibleWithinSubclass.js |  2 +-
 ...edStaticClassPropertyAccessibleWithinSubclass2.js |  2 +-
 ...name-resolution-does-not-affect-class-heritage.js |  2 +-
 .../reference/reactDefaultPropsInferenceSuccess.js   |  2 +-
 tests/baselines/reference/reactHOCSpreadprops.js     |  2 +-
 .../reference/reactReadonlyHOCAssignabilityReal.js   |  2 +-
 ...eactReduxLikeDeferredInferenceAllowsAssignment.js |  2 +-
 .../readonlyAssignmentInSubclassOfClassExpression.js |  2 +-
 .../reference/readonlyConstructorAssignment.js       |  2 +-
 tests/baselines/reference/recursiveBaseCheck3.js     |  2 +-
 tests/baselines/reference/recursiveBaseCheck4.js     |  2 +-
 tests/baselines/reference/recursiveBaseCheck6.js     |  2 +-
 .../reference/recursiveBaseConstructorCreation1.js   |  2 +-
 ...siveClassInstantiationsWithDefaultConstructors.js |  2 +-
 .../reference/recursiveClassReferenceTest.js         |  2 +-
 .../recursiveClassReferenceTest.sourcemap.txt        |  2 +-
 .../reference/recursiveComplicatedClasses.js         |  2 +-
 .../recursivelySpecializedConstructorDeclaration.js  |  2 +-
 tests/baselines/reference/reexportClassDefinition.js |  2 +-
 .../baselines/reference/reexportDefaultIsCallable.js |  2 +-
 tests/baselines/reference/reexportedMissingAlias.js  |  2 +-
 ...olvingClassDeclarationWhenInBaseTypeResolution.js |  2 +-
 tests/baselines/reference/returnInConstructor1.js    |  2 +-
 tests/baselines/reference/returnStatements.js        |  2 +-
 ...urnTypePredicateIsInstantiateInContextOfTarget.js |  2 +-
 .../scopeCheckExtendedClassInsidePublicMethod2.js    |  2 +-
 .../scopeCheckExtendedClassInsideStaticMethod1.js    |  2 +-
 tests/baselines/reference/scopeTests.js              |  2 +-
 tests/baselines/reference/shadowPrivateMembers.js    |  2 +-
 ...ionClassWithDefaultConstructorAndExtendsClause.js |  2 +-
 ...hDefaultConstructorAndExtendsClause.sourcemap.txt |  2 +-
 .../reference/specializedInheritedConstructors1.js   |  2 +-
 .../specializedOverloadWithRestParameters.js         |  2 +-
 tests/baselines/reference/staticFactory1.js          |  2 +-
 tests/baselines/reference/staticInheritance.js       |  2 +-
 .../reference/staticMemberAccessOffDerivedType1.js   |  2 +-
 .../reference/staticMismatchBecauseOfPrototype.js    |  2 +-
 tests/baselines/reference/staticPropSuper.js         |  2 +-
 tests/baselines/reference/strictModeInConstructor.js |  2 +-
 tests/baselines/reference/strictModeReservedWord.js  |  2 +-
 .../strictModeReservedWordInClassDeclaration.js      |  2 +-
 .../stringIndexerConstrainsPropertyDeclarations2.js  |  2 +-
 .../subSubClassCanAccessProtectedConstructor.js      |  2 +-
 tests/baselines/reference/subtypesOfTypeParameter.js |  2 +-
 .../subtypesOfTypeParameterWithConstraints.js        |  2 +-
 .../subtypesOfTypeParameterWithConstraints4.js       |  2 +-
 ...ubtypesOfTypeParameterWithRecursiveConstraints.js |  2 +-
 tests/baselines/reference/subtypingTransitivity.js   |  2 +-
 .../reference/subtypingWithCallSignatures2.js        |  2 +-
 .../reference/subtypingWithCallSignatures3.js        |  2 +-
 .../reference/subtypingWithCallSignatures4.js        |  2 +-
 .../reference/subtypingWithConstructSignatures2.js   |  2 +-
 .../reference/subtypingWithConstructSignatures3.js   |  2 +-
 .../reference/subtypingWithConstructSignatures4.js   |  2 +-
 .../reference/subtypingWithConstructSignatures5.js   |  2 +-
 .../reference/subtypingWithConstructSignatures6.js   |  2 +-
 .../reference/subtypingWithNumericIndexer.js         |  2 +-
 .../reference/subtypingWithNumericIndexer3.js        |  2 +-
 .../reference/subtypingWithNumericIndexer4.js        |  2 +-
 .../reference/subtypingWithObjectMembers.js          |  2 +-
 .../reference/subtypingWithObjectMembers4.js         |  2 +-
 .../subtypingWithObjectMembersAccessibility.js       |  2 +-
 .../subtypingWithObjectMembersAccessibility2.js      |  2 +-
 .../reference/subtypingWithStringIndexer.js          |  2 +-
 .../reference/subtypingWithStringIndexer3.js         |  2 +-
 .../reference/subtypingWithStringIndexer4.js         |  2 +-
 tests/baselines/reference/super.js                   |  2 +-
 tests/baselines/reference/super1.js                  |  2 +-
 tests/baselines/reference/super2.js                  |  2 +-
 tests/baselines/reference/superAccess.js             |  2 +-
 tests/baselines/reference/superAccess2.js            |  2 +-
 tests/baselines/reference/superAccessCastedCall.js   |  2 +-
 tests/baselines/reference/superAccessInFatArrow1.js  |  2 +-
 tests/baselines/reference/superCallArgsMustMatch.js  |  2 +-
 tests/baselines/reference/superCallAssignResult.js   |  2 +-
 .../reference/superCallBeforeThisAccessing1.js       |  2 +-
 .../reference/superCallBeforeThisAccessing2.js       |  2 +-
 .../reference/superCallBeforeThisAccessing3.js       |  2 +-
 .../reference/superCallBeforeThisAccessing4.js       |  2 +-
 .../reference/superCallBeforeThisAccessing5.js       |  2 +-
 .../reference/superCallBeforeThisAccessing6.js       |  2 +-
 .../reference/superCallBeforeThisAccessing7.js       |  2 +-
 .../reference/superCallBeforeThisAccessing8.js       |  2 +-
 .../superCallFromClassThatDerivesFromGenericType1.js |  2 +-
 .../superCallFromClassThatDerivesFromGenericType2.js |  2 +-
 ...ericTypeButWithIncorrectNumberOfTypeArguments1.js |  2 +-
 ...tDerivesFromGenericTypeButWithNoTypeArguments1.js |  2 +-
 ...ThatDerivesNonGenericTypeButWithTypeArguments1.js |  2 +-
 .../reference/superCallInNonStaticMethod.js          |  2 +-
 tests/baselines/reference/superCallInStaticMethod.js |  2 +-
 .../reference/superCallInsideClassDeclaration.js     |  2 +-
 .../reference/superCallInsideClassExpression.js      |  2 +-
 .../superCallInsideObjectLiteralExpression.js        |  2 +-
 .../reference/superCallOutsideConstructor.js         |  2 +-
 .../reference/superCallParameterContextualTyping1.js |  2 +-
 .../reference/superCallParameterContextualTyping2.js |  2 +-
 .../reference/superCallParameterContextualTyping3.js |  2 +-
 .../reference/superCallWithCommentEmit01.js          |  2 +-
 .../reference/superCallWithMissingBaseClass.js       |  2 +-
 tests/baselines/reference/superCalls.js              |  2 +-
 tests/baselines/reference/superCallsInConstructor.js |  2 +-
 tests/baselines/reference/superElementAccess.js      |  2 +-
 tests/baselines/reference/superErrors.js             |  2 +-
 .../reference/superHasMethodsFromMergedInterface.js  |  2 +-
 tests/baselines/reference/superInCatchBlock1.js      |  2 +-
 .../baselines/reference/superInConstructorParam1.js  |  2 +-
 tests/baselines/reference/superInLambdas.js          |  2 +-
 .../baselines/reference/superInObjectLiterals_ES5.js |  2 +-
 tests/baselines/reference/superNewCall1.js           |  2 +-
 tests/baselines/reference/superNoModifiersCrash.js   |  2 +-
 tests/baselines/reference/superPropertyAccess.js     |  2 +-
 tests/baselines/reference/superPropertyAccess1.js    |  2 +-
 tests/baselines/reference/superPropertyAccess2.js    |  2 +-
 ...ertyAccessInComputedPropertiesOfNestedType_ES5.js |  2 +-
 .../reference/superPropertyAccessInSuperCall01.js    |  2 +-
 .../reference/superPropertyAccessNoError.js          |  2 +-
 tests/baselines/reference/superPropertyAccess_ES5.js |  2 +-
 ...superPropertyElementNoUnusedLexicalThisCapture.js |  2 +-
 .../superPropertyInConstructorBeforeSuperCall.js     |  2 +-
 .../baselines/reference/superSymbolIndexedAccess5.js |  2 +-
 .../baselines/reference/superSymbolIndexedAccess6.js |  2 +-
 .../reference/superWithGenericSpecialization.js      |  2 +-
 tests/baselines/reference/superWithGenerics.js       |  2 +-
 tests/baselines/reference/superWithTypeArgument.js   |  2 +-
 tests/baselines/reference/superWithTypeArgument2.js  |  2 +-
 tests/baselines/reference/superWithTypeArgument3.js  |  2 +-
 ...uper_inside-object-literal-getters-and-setters.js |  2 +-
 tests/baselines/reference/switchStatements.js        |  2 +-
 .../symbolLinkDeclarationEmitModuleNames.js          |  2 +-
 .../reference/systemModuleWithSuperClass.js          |  2 +-
 tests/baselines/reference/targetTypeBaseCalls.js     |  2 +-
 ...thisConditionalOnMethodReturnOfGenericInstance.js |  2 +-
 tests/baselines/reference/thisInInvalidContexts.js   |  2 +-
 .../reference/thisInInvalidContextsExternalModule.js |  2 +-
 tests/baselines/reference/thisInSuperCall.js         |  2 +-
 tests/baselines/reference/thisInSuperCall1.js        |  2 +-
 tests/baselines/reference/thisInSuperCall2.js        |  2 +-
 tests/baselines/reference/thisInSuperCall3.js        |  2 +-
 .../thisIndexOnExistingReadonlyFieldIsNotNever.js    |  2 +-
 tests/baselines/reference/thisTypeInFunctions.js     |  2 +-
 tests/baselines/reference/thisTypeInFunctions3.js    |  2 +-
 ...ransformsCorrectly.transformAddCommentToImport.js |  2 +-
 .../when-esModuleInterop-option-changes.js           |  2 +-
 ...ences-sibling-package-through-indirect-symlink.js |  2 +-
 .../when-there-are-circular-import-and-exports.js    |  2 +-
 .../when-there-are-no-circular-import-and-exports.js |  2 +-
 .../when-there-are-circular-import-and-exports.js    |  2 +-
 .../when-there-are-no-circular-import-and-exports.js |  2 +-
 .../when-there-are-circular-import-and-exports.js    |  2 +-
 .../when-there-are-no-circular-import-and-exports.js |  2 +-
 .../when-there-are-circular-import-and-exports.js    |  2 +-
 .../when-there-are-no-circular-import-and-exports.js |  2 +-
 .../when-there-are-circular-import-and-exports.js    |  6 +++---
 .../when-there-are-no-circular-import-and-exports.js |  6 +++---
 .../when-there-are-circular-import-and-exports.js    |  6 +++---
 .../when-there-are-no-circular-import-and-exports.js |  6 +++---
 ...es-in-files-are-reflected-in-project-structure.js |  4 ++--
 .../deleted-files-affect-project-structure-2.js      |  4 ++--
 .../deleted-files-affect-project-structure.js        |  4 ++--
 .../baselines/reference/tsxAttributeResolution15.js  |  2 +-
 .../baselines/reference/tsxAttributeResolution16.js  |  2 +-
 .../tsxCorrectlyParseLessThanComparison1.js          |  2 +-
 .../reference/tsxDefaultAttributesResolution1.js     |  2 +-
 .../reference/tsxDefaultAttributesResolution2.js     |  2 +-
 .../reference/tsxDefaultAttributesResolution3.js     |  2 +-
 tests/baselines/reference/tsxDynamicTagName5.js      |  2 +-
 tests/baselines/reference/tsxDynamicTagName7.js      |  2 +-
 tests/baselines/reference/tsxDynamicTagName8.js      |  2 +-
 tests/baselines/reference/tsxDynamicTagName9.js      |  2 +-
 tests/baselines/reference/tsxExternalModuleEmit1.js  |  4 ++--
 .../baselines/reference/tsxFragmentChildrenCheck.js  |  2 +-
 .../baselines/reference/tsxGenericAttributesType3.js |  2 +-
 .../baselines/reference/tsxGenericAttributesType4.js |  2 +-
 .../baselines/reference/tsxGenericAttributesType5.js |  2 +-
 .../baselines/reference/tsxGenericAttributesType6.js |  2 +-
 .../baselines/reference/tsxGenericAttributesType9.js |  2 +-
 .../reference/tsxLibraryManagedAttributes.js         |  2 +-
 .../reference/tsxNotUsingApparentTypeOfSFC.js        |  2 +-
 .../reference/tsxSpreadAttributesResolution1.js      |  2 +-
 .../reference/tsxSpreadAttributesResolution10.js     |  2 +-
 .../reference/tsxSpreadAttributesResolution11.js     |  2 +-
 .../reference/tsxSpreadAttributesResolution12.js     |  2 +-
 .../reference/tsxSpreadAttributesResolution17.js     |  2 +-
 .../reference/tsxSpreadAttributesResolution2.js      |  2 +-
 .../reference/tsxSpreadAttributesResolution3.js      |  2 +-
 .../reference/tsxSpreadAttributesResolution4.js      |  2 +-
 .../reference/tsxSpreadAttributesResolution5.js      |  2 +-
 .../reference/tsxSpreadAttributesResolution6.js      |  2 +-
 .../reference/tsxSpreadAttributesResolution7.js      |  2 +-
 .../reference/tsxSpreadAttributesResolution8.js      |  2 +-
 .../reference/tsxSpreadAttributesResolution9.js      |  2 +-
 .../reference/tsxSpreadDoesNotReportExcessProps.js   |  2 +-
 .../reference/tsxStatelessFunctionComponents2.js     |  2 +-
 tests/baselines/reference/tsxUnionElementType3.js    |  2 +-
 tests/baselines/reference/tsxUnionElementType4.js    |  2 +-
 tests/baselines/reference/tsxUnionTypeComponent1.js  |  2 +-
 .../reference/typeAliasFunctionTypeSharedSymbol.js   |  2 +-
 tests/baselines/reference/typeAssertions.js          |  2 +-
 tests/baselines/reference/typeGuardFunction.js       |  2 +-
 tests/baselines/reference/typeGuardFunctionErrors.js |  2 +-
 .../baselines/reference/typeGuardFunctionGenerics.js |  2 +-
 .../reference/typeGuardFunctionOfFormThis.js         |  2 +-
 .../reference/typeGuardFunctionOfFormThisErrors.js   |  2 +-
 .../baselines/reference/typeGuardOfFormInstanceOf.js |  2 +-
 tests/baselines/reference/typeGuardOfFormIsType.js   |  2 +-
 .../baselines/reference/typeGuardOfFormThisMember.js |  2 +-
 .../reference/typeGuardOfFormThisMemberErrors.js     |  2 +-
 tests/baselines/reference/typeMatch2.js              |  2 +-
 tests/baselines/reference/typeOfSuperCall.js         |  2 +-
 .../baselines/reference/typeParameterAsBaseClass.js  |  2 +-
 tests/baselines/reference/typeParameterAsBaseType.js |  2 +-
 .../reference/typeParameterExtendingUnion1.js        |  2 +-
 .../reference/typeParameterExtendingUnion2.js        |  2 +-
 tests/baselines/reference/typeRelationships.js       |  2 +-
 tests/baselines/reference/typeValueConflict1.js      |  2 +-
 tests/baselines/reference/typeValueConflict2.js      |  2 +-
 tests/baselines/reference/typeVariableTypeGuards.js  |  2 +-
 tests/baselines/reference/typeofClass2.js            |  2 +-
 .../reference/typesWithSpecializedCallSignatures.js  |  2 +-
 .../typesWithSpecializedConstructSignatures.js       |  2 +-
 tests/baselines/reference/undeclaredBase.js          |  2 +-
 .../reference/undefinedIsSubtypeOfEverything.js      |  2 +-
 tests/baselines/reference/underscoreMapFirst.js      |  2 +-
 .../reference/underscoreThisInDerivedClass01.js      |  2 +-
 .../reference/underscoreThisInDerivedClass02.js      |  2 +-
 tests/baselines/reference/unionTypeEquivalence.js    |  2 +-
 .../baselines/reference/unionTypeFromArrayLiteral.js |  2 +-
 tests/baselines/reference/unionTypesAssignability.js |  2 +-
 tests/baselines/reference/unknownSymbols1.js         |  2 +-
 .../baselines/reference/unspecializedConstraints.js  |  2 +-
 .../untypedFunctionCallsWithTypeParameters1.js       |  2 +-
 .../baselines/reference/unusedClassesinNamespace4.js |  2 +-
 .../reference/unusedIdentifiersConsolidated1.js      |  2 +-
 .../reference/unusedInvalidTypeArguments.js          |  4 ++--
 .../reference/useBeforeDeclaration_superClass.js     |  2 +-
 tests/baselines/reference/validUseOfThisInSuper.js   |  2 +-
 .../baselines/reference/varArgsOnConstructorTypes.js |  2 +-
 ...oblingAndZeroOrderIndexSignatureRelationsAlign.js |  2 +-
 ...blingAndZeroOrderIndexSignatureRelationsAlign2.js |  2 +-
 861 files changed, 898 insertions(+), 898 deletions(-)

diff --git a/tests/baselines/reference/ExportClassWithAccessibleTypesInTypeParameterConstraintsClassHeritageListMemberTypeAnnotations.js b/tests/baselines/reference/ExportClassWithAccessibleTypesInTypeParameterConstraintsClassHeritageListMemberTypeAnnotations.js
index 9074e2ad4c8..9a16ee2710f 100644
--- a/tests/baselines/reference/ExportClassWithAccessibleTypesInTypeParameterConstraintsClassHeritageListMemberTypeAnnotations.js
+++ b/tests/baselines/reference/ExportClassWithAccessibleTypesInTypeParameterConstraintsClassHeritageListMemberTypeAnnotations.js
@@ -25,7 +25,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/ExportClassWithInaccessibleTypeInTypeParameterConstraint.js b/tests/baselines/reference/ExportClassWithInaccessibleTypeInTypeParameterConstraint.js
index 7ffab769794..abb2205edc3 100644
--- a/tests/baselines/reference/ExportClassWithInaccessibleTypeInTypeParameterConstraint.js
+++ b/tests/baselines/reference/ExportClassWithInaccessibleTypeInTypeParameterConstraint.js
@@ -29,7 +29,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/abstractClassInLocalScope.js b/tests/baselines/reference/abstractClassInLocalScope.js
index 4e7b9f87095..5c62cb66989 100644
--- a/tests/baselines/reference/abstractClassInLocalScope.js
+++ b/tests/baselines/reference/abstractClassInLocalScope.js
@@ -12,7 +12,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/abstractClassInLocalScopeIsAbstract.js b/tests/baselines/reference/abstractClassInLocalScopeIsAbstract.js
index 60af14e625b..31ebc0a500b 100644
--- a/tests/baselines/reference/abstractClassInLocalScopeIsAbstract.js
+++ b/tests/baselines/reference/abstractClassInLocalScopeIsAbstract.js
@@ -12,7 +12,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/abstractProperty.js b/tests/baselines/reference/abstractProperty.js
index a7d63d55452..3e71f6452a3 100644
--- a/tests/baselines/reference/abstractProperty.js
+++ b/tests/baselines/reference/abstractProperty.js
@@ -26,7 +26,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/abstractPropertyInConstructor.js b/tests/baselines/reference/abstractPropertyInConstructor.js
index ab830664d51..91ec9dcd8cd 100644
--- a/tests/baselines/reference/abstractPropertyInConstructor.js
+++ b/tests/baselines/reference/abstractPropertyInConstructor.js
@@ -76,7 +76,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/abstractPropertyNegative.js b/tests/baselines/reference/abstractPropertyNegative.js
index df07c9f7a3e..06cabd11218 100644
--- a/tests/baselines/reference/abstractPropertyNegative.js
+++ b/tests/baselines/reference/abstractPropertyNegative.js
@@ -48,7 +48,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/accessOverriddenBaseClassMember1.js b/tests/baselines/reference/accessOverriddenBaseClassMember1.js
index 6512ba01d67..71c716ea90c 100644
--- a/tests/baselines/reference/accessOverriddenBaseClassMember1.js
+++ b/tests/baselines/reference/accessOverriddenBaseClassMember1.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/accessorsOverrideProperty7.js b/tests/baselines/reference/accessorsOverrideProperty7.js
index 5c5b0de2507..240aa90327c 100644
--- a/tests/baselines/reference/accessorsOverrideProperty7.js
+++ b/tests/baselines/reference/accessorsOverrideProperty7.js
@@ -12,7 +12,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/accessors_spec_section-4.5_inference.js b/tests/baselines/reference/accessors_spec_section-4.5_inference.js
index 9be63d5e41a..968a55d80c5 100644
--- a/tests/baselines/reference/accessors_spec_section-4.5_inference.js
+++ b/tests/baselines/reference/accessors_spec_section-4.5_inference.js
@@ -29,7 +29,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/aliasUsageInAccessorsOfClass.js b/tests/baselines/reference/aliasUsageInAccessorsOfClass.js
index 107466601d3..22c5b5c5c95 100644
--- a/tests/baselines/reference/aliasUsageInAccessorsOfClass.js
+++ b/tests/baselines/reference/aliasUsageInAccessorsOfClass.js
@@ -42,7 +42,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/aliasUsageInArray.js b/tests/baselines/reference/aliasUsageInArray.js
index 4282290a392..3ca4586729c 100644
--- a/tests/baselines/reference/aliasUsageInArray.js
+++ b/tests/baselines/reference/aliasUsageInArray.js
@@ -36,7 +36,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/aliasUsageInFunctionExpression.js b/tests/baselines/reference/aliasUsageInFunctionExpression.js
index 18ec4ed2c0a..b6449d30fd8 100644
--- a/tests/baselines/reference/aliasUsageInFunctionExpression.js
+++ b/tests/baselines/reference/aliasUsageInFunctionExpression.js
@@ -35,7 +35,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/aliasUsageInGenericFunction.js b/tests/baselines/reference/aliasUsageInGenericFunction.js
index 9ec03624f1a..88bd04a5e40 100644
--- a/tests/baselines/reference/aliasUsageInGenericFunction.js
+++ b/tests/baselines/reference/aliasUsageInGenericFunction.js
@@ -39,7 +39,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/aliasUsageInIndexerOfClass.js b/tests/baselines/reference/aliasUsageInIndexerOfClass.js
index beb62454069..d9b1332d6b4 100644
--- a/tests/baselines/reference/aliasUsageInIndexerOfClass.js
+++ b/tests/baselines/reference/aliasUsageInIndexerOfClass.js
@@ -41,7 +41,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/aliasUsageInObjectLiteral.js b/tests/baselines/reference/aliasUsageInObjectLiteral.js
index aa70bdd700a..ec4f34b02d6 100644
--- a/tests/baselines/reference/aliasUsageInObjectLiteral.js
+++ b/tests/baselines/reference/aliasUsageInObjectLiteral.js
@@ -36,7 +36,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/aliasUsageInOrExpression.js b/tests/baselines/reference/aliasUsageInOrExpression.js
index e0969ae9901..6c6544e7f5a 100644
--- a/tests/baselines/reference/aliasUsageInOrExpression.js
+++ b/tests/baselines/reference/aliasUsageInOrExpression.js
@@ -39,7 +39,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/aliasUsageInTypeArgumentOfExtendsClause.js b/tests/baselines/reference/aliasUsageInTypeArgumentOfExtendsClause.js
index 8b6485aa2c4..bc60aca9279 100644
--- a/tests/baselines/reference/aliasUsageInTypeArgumentOfExtendsClause.js
+++ b/tests/baselines/reference/aliasUsageInTypeArgumentOfExtendsClause.js
@@ -39,7 +39,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
@@ -64,7 +64,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/aliasUsageInVarAssignment.js b/tests/baselines/reference/aliasUsageInVarAssignment.js
index e51718537f4..01774059350 100644
--- a/tests/baselines/reference/aliasUsageInVarAssignment.js
+++ b/tests/baselines/reference/aliasUsageInVarAssignment.js
@@ -35,7 +35,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/ambientShorthand_reExport.js b/tests/baselines/reference/ambientShorthand_reExport.js
index a9fef57c1c6..1def3a48979 100644
--- a/tests/baselines/reference/ambientShorthand_reExport.js
+++ b/tests/baselines/reference/ambientShorthand_reExport.js
@@ -38,7 +38,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("jquery"), exports);
diff --git a/tests/baselines/reference/ambiguousOverloadResolution.js b/tests/baselines/reference/ambiguousOverloadResolution.js
index 56bef268fb4..0ae9d9238e1 100644
--- a/tests/baselines/reference/ambiguousOverloadResolution.js
+++ b/tests/baselines/reference/ambiguousOverloadResolution.js
@@ -13,7 +13,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/amdDeclarationEmitNoExtraDeclare.js b/tests/baselines/reference/amdDeclarationEmitNoExtraDeclare.js
index a4b9d732c0b..8adf2230755 100644
--- a/tests/baselines/reference/amdDeclarationEmitNoExtraDeclare.js
+++ b/tests/baselines/reference/amdDeclarationEmitNoExtraDeclare.js
@@ -26,7 +26,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/anonClassDeclarationEmitIsAnon.js b/tests/baselines/reference/anonClassDeclarationEmitIsAnon.js
index 697348e1ba8..fdd199a9c35 100644
--- a/tests/baselines/reference/anonClassDeclarationEmitIsAnon.js
+++ b/tests/baselines/reference/anonClassDeclarationEmitIsAnon.js
@@ -40,7 +40,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
@@ -79,7 +79,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/anonymousClassDeclarationDoesntPrintWithReadonly.js b/tests/baselines/reference/anonymousClassDeclarationDoesntPrintWithReadonly.js
index 9579d7c5a4a..a0e789a9750 100644
--- a/tests/baselines/reference/anonymousClassDeclarationDoesntPrintWithReadonly.js
+++ b/tests/baselines/reference/anonymousClassDeclarationDoesntPrintWithReadonly.js
@@ -13,7 +13,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/apparentTypeSubtyping.js b/tests/baselines/reference/apparentTypeSubtyping.js
index 2e9987f1e0d..3dc0f8dffc8 100644
--- a/tests/baselines/reference/apparentTypeSubtyping.js
+++ b/tests/baselines/reference/apparentTypeSubtyping.js
@@ -28,7 +28,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/apparentTypeSupertype.js b/tests/baselines/reference/apparentTypeSupertype.js
index 82443d22197..45c0b8e488b 100644
--- a/tests/baselines/reference/apparentTypeSupertype.js
+++ b/tests/baselines/reference/apparentTypeSupertype.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/arrayAssignmentTest1.js b/tests/baselines/reference/arrayAssignmentTest1.js
index baf1e8bfa3a..339589030e1 100644
--- a/tests/baselines/reference/arrayAssignmentTest1.js
+++ b/tests/baselines/reference/arrayAssignmentTest1.js
@@ -90,7 +90,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/arrayAssignmentTest2.js b/tests/baselines/reference/arrayAssignmentTest2.js
index 5b1a655d781..43a293fb23a 100644
--- a/tests/baselines/reference/arrayAssignmentTest2.js
+++ b/tests/baselines/reference/arrayAssignmentTest2.js
@@ -64,7 +64,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/arrayBestCommonTypes.js b/tests/baselines/reference/arrayBestCommonTypes.js
index 7b8da4f7970..53368bfc1e6 100644
--- a/tests/baselines/reference/arrayBestCommonTypes.js
+++ b/tests/baselines/reference/arrayBestCommonTypes.js
@@ -112,7 +112,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/arrayLiteralTypeInference.js b/tests/baselines/reference/arrayLiteralTypeInference.js
index fcd8a62ce0b..7349a604470 100644
--- a/tests/baselines/reference/arrayLiteralTypeInference.js
+++ b/tests/baselines/reference/arrayLiteralTypeInference.js
@@ -56,7 +56,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/arrayLiterals.js b/tests/baselines/reference/arrayLiterals.js
index c4d257dd546..a832a921d5a 100644
--- a/tests/baselines/reference/arrayLiterals.js
+++ b/tests/baselines/reference/arrayLiterals.js
@@ -42,7 +42,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/arrayLiteralsWithRecursiveGenerics.js b/tests/baselines/reference/arrayLiteralsWithRecursiveGenerics.js
index 25a76bec5c7..6c210c9fcf9 100644
--- a/tests/baselines/reference/arrayLiteralsWithRecursiveGenerics.js
+++ b/tests/baselines/reference/arrayLiteralsWithRecursiveGenerics.js
@@ -30,7 +30,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/arrayOfSubtypeIsAssignableToReadonlyArray.js b/tests/baselines/reference/arrayOfSubtypeIsAssignableToReadonlyArray.js
index 45b587c0e62..984f5e693b6 100644
--- a/tests/baselines/reference/arrayOfSubtypeIsAssignableToReadonlyArray.js
+++ b/tests/baselines/reference/arrayOfSubtypeIsAssignableToReadonlyArray.js
@@ -24,7 +24,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/arrowFunctionContexts.js b/tests/baselines/reference/arrowFunctionContexts.js
index 466131ea206..223d1270228 100644
--- a/tests/baselines/reference/arrowFunctionContexts.js
+++ b/tests/baselines/reference/arrowFunctionContexts.js
@@ -100,7 +100,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/assertionTypePredicates1.js b/tests/baselines/reference/assertionTypePredicates1.js
index 46e88e61ad0..fd971959473 100644
--- a/tests/baselines/reference/assertionTypePredicates1.js
+++ b/tests/baselines/reference/assertionTypePredicates1.js
@@ -170,7 +170,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/assignmentCompatWithCallSignatures3.js b/tests/baselines/reference/assignmentCompatWithCallSignatures3.js
index a051b4e5194..b4a9b5bc4cf 100644
--- a/tests/baselines/reference/assignmentCompatWithCallSignatures3.js
+++ b/tests/baselines/reference/assignmentCompatWithCallSignatures3.js
@@ -105,7 +105,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/assignmentCompatWithCallSignatures4.js b/tests/baselines/reference/assignmentCompatWithCallSignatures4.js
index fc83877023b..3bc0af841ab 100644
--- a/tests/baselines/reference/assignmentCompatWithCallSignatures4.js
+++ b/tests/baselines/reference/assignmentCompatWithCallSignatures4.js
@@ -104,7 +104,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/assignmentCompatWithCallSignatures5.js b/tests/baselines/reference/assignmentCompatWithCallSignatures5.js
index fb6d0be1be1..0c546cde84c 100644
--- a/tests/baselines/reference/assignmentCompatWithCallSignatures5.js
+++ b/tests/baselines/reference/assignmentCompatWithCallSignatures5.js
@@ -71,7 +71,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/assignmentCompatWithCallSignatures6.js b/tests/baselines/reference/assignmentCompatWithCallSignatures6.js
index 9e752a43a17..8e7ff3c057b 100644
--- a/tests/baselines/reference/assignmentCompatWithCallSignatures6.js
+++ b/tests/baselines/reference/assignmentCompatWithCallSignatures6.js
@@ -48,7 +48,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/assignmentCompatWithConstructSignatures3.js b/tests/baselines/reference/assignmentCompatWithConstructSignatures3.js
index 932f9bb5d66..8cdbc17f88c 100644
--- a/tests/baselines/reference/assignmentCompatWithConstructSignatures3.js
+++ b/tests/baselines/reference/assignmentCompatWithConstructSignatures3.js
@@ -105,7 +105,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/assignmentCompatWithConstructSignatures4.js b/tests/baselines/reference/assignmentCompatWithConstructSignatures4.js
index 4dad18cea8f..e2cc9e997e6 100644
--- a/tests/baselines/reference/assignmentCompatWithConstructSignatures4.js
+++ b/tests/baselines/reference/assignmentCompatWithConstructSignatures4.js
@@ -104,7 +104,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/assignmentCompatWithConstructSignatures5.js b/tests/baselines/reference/assignmentCompatWithConstructSignatures5.js
index 5f16895caf2..966f76e2a9d 100644
--- a/tests/baselines/reference/assignmentCompatWithConstructSignatures5.js
+++ b/tests/baselines/reference/assignmentCompatWithConstructSignatures5.js
@@ -71,7 +71,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/assignmentCompatWithConstructSignatures6.js b/tests/baselines/reference/assignmentCompatWithConstructSignatures6.js
index dfce487fff1..4d381ca543a 100644
--- a/tests/baselines/reference/assignmentCompatWithConstructSignatures6.js
+++ b/tests/baselines/reference/assignmentCompatWithConstructSignatures6.js
@@ -48,7 +48,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/assignmentCompatWithNumericIndexer.js b/tests/baselines/reference/assignmentCompatWithNumericIndexer.js
index 6cdab6f3bed..95db5f72f56 100644
--- a/tests/baselines/reference/assignmentCompatWithNumericIndexer.js
+++ b/tests/baselines/reference/assignmentCompatWithNumericIndexer.js
@@ -49,7 +49,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/assignmentCompatWithNumericIndexer3.js b/tests/baselines/reference/assignmentCompatWithNumericIndexer3.js
index 54eb5e3ac9b..984cbdf4875 100644
--- a/tests/baselines/reference/assignmentCompatWithNumericIndexer3.js
+++ b/tests/baselines/reference/assignmentCompatWithNumericIndexer3.js
@@ -46,7 +46,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/assignmentCompatWithObjectMembers4.js b/tests/baselines/reference/assignmentCompatWithObjectMembers4.js
index dd8d9d1bf46..831d6f245b3 100644
--- a/tests/baselines/reference/assignmentCompatWithObjectMembers4.js
+++ b/tests/baselines/reference/assignmentCompatWithObjectMembers4.js
@@ -97,7 +97,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/assignmentCompatWithObjectMembersOptionality.js b/tests/baselines/reference/assignmentCompatWithObjectMembersOptionality.js
index fa8ca3f7ad8..10964ff61c5 100644
--- a/tests/baselines/reference/assignmentCompatWithObjectMembersOptionality.js
+++ b/tests/baselines/reference/assignmentCompatWithObjectMembersOptionality.js
@@ -94,7 +94,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/assignmentCompatWithObjectMembersOptionality2.js b/tests/baselines/reference/assignmentCompatWithObjectMembersOptionality2.js
index 918c2739ace..bc5bff6b203 100644
--- a/tests/baselines/reference/assignmentCompatWithObjectMembersOptionality2.js
+++ b/tests/baselines/reference/assignmentCompatWithObjectMembersOptionality2.js
@@ -97,7 +97,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/assignmentCompatWithStringIndexer.js b/tests/baselines/reference/assignmentCompatWithStringIndexer.js
index 9a67a00bac0..fa9eb5cec0b 100644
--- a/tests/baselines/reference/assignmentCompatWithStringIndexer.js
+++ b/tests/baselines/reference/assignmentCompatWithStringIndexer.js
@@ -59,7 +59,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/assignmentLHSIsValue.js b/tests/baselines/reference/assignmentLHSIsValue.js
index dd7f28cb003..363a9dfb0c2 100644
--- a/tests/baselines/reference/assignmentLHSIsValue.js
+++ b/tests/baselines/reference/assignmentLHSIsValue.js
@@ -75,7 +75,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/asyncImportedPromise_es5.js b/tests/baselines/reference/asyncImportedPromise_es5.js
index 11699f6ab1e..4c188426f0c 100644
--- a/tests/baselines/reference/asyncImportedPromise_es5.js
+++ b/tests/baselines/reference/asyncImportedPromise_es5.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/autolift4.js b/tests/baselines/reference/autolift4.js
index 53ce6dc9dc3..c2fa9f2cc9a 100644
--- a/tests/baselines/reference/autolift4.js
+++ b/tests/baselines/reference/autolift4.js
@@ -28,7 +28,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/baseCheck.js b/tests/baselines/reference/baseCheck.js
index 114bbf655e4..f036f533040 100644
--- a/tests/baselines/reference/baseCheck.js
+++ b/tests/baselines/reference/baseCheck.js
@@ -34,7 +34,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/baseClassImprovedMismatchErrors.js b/tests/baselines/reference/baseClassImprovedMismatchErrors.js
index 2b864807570..2b19c56d311 100644
--- a/tests/baselines/reference/baseClassImprovedMismatchErrors.js
+++ b/tests/baselines/reference/baseClassImprovedMismatchErrors.js
@@ -23,7 +23,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/baseConstraintOfDecorator.js b/tests/baselines/reference/baseConstraintOfDecorator.js
index 0c1f77e31e6..ebbdb4e24b9 100644
--- a/tests/baselines/reference/baseConstraintOfDecorator.js
+++ b/tests/baselines/reference/baseConstraintOfDecorator.js
@@ -25,7 +25,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/baseExpressionTypeParameters.js b/tests/baselines/reference/baseExpressionTypeParameters.js
index aa16fcebf55..a2f9b45b688 100644
--- a/tests/baselines/reference/baseExpressionTypeParameters.js
+++ b/tests/baselines/reference/baseExpressionTypeParameters.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/baseIndexSignatureResolution.js b/tests/baselines/reference/baseIndexSignatureResolution.js
index 09aabe21ac4..abf5b620627 100644
--- a/tests/baselines/reference/baseIndexSignatureResolution.js
+++ b/tests/baselines/reference/baseIndexSignatureResolution.js
@@ -29,7 +29,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/baseTypeOrderChecking.js b/tests/baselines/reference/baseTypeOrderChecking.js
index 31fa3391af5..955816d3d86 100644
--- a/tests/baselines/reference/baseTypeOrderChecking.js
+++ b/tests/baselines/reference/baseTypeOrderChecking.js
@@ -41,7 +41,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/baseTypeWrappingInstantiationChain.js b/tests/baselines/reference/baseTypeWrappingInstantiationChain.js
index de50a58205d..260d296d9e5 100644
--- a/tests/baselines/reference/baseTypeWrappingInstantiationChain.js
+++ b/tests/baselines/reference/baseTypeWrappingInstantiationChain.js
@@ -32,7 +32,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/bases.js b/tests/baselines/reference/bases.js
index 25cf4073d5c..2a753743434 100644
--- a/tests/baselines/reference/bases.js
+++ b/tests/baselines/reference/bases.js
@@ -25,7 +25,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/bestCommonTypeOfConditionalExpressions.js b/tests/baselines/reference/bestCommonTypeOfConditionalExpressions.js
index b755bf200a5..0d5754c2240 100644
--- a/tests/baselines/reference/bestCommonTypeOfConditionalExpressions.js
+++ b/tests/baselines/reference/bestCommonTypeOfConditionalExpressions.js
@@ -33,7 +33,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/bestCommonTypeOfConditionalExpressions2.js b/tests/baselines/reference/bestCommonTypeOfConditionalExpressions2.js
index b7afc3eee41..3a5fd197fc9 100644
--- a/tests/baselines/reference/bestCommonTypeOfConditionalExpressions2.js
+++ b/tests/baselines/reference/bestCommonTypeOfConditionalExpressions2.js
@@ -31,7 +31,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/bestCommonTypeOfTuple2.js b/tests/baselines/reference/bestCommonTypeOfTuple2.js
index a3672a76423..d44a43674e8 100644
--- a/tests/baselines/reference/bestCommonTypeOfTuple2.js
+++ b/tests/baselines/reference/bestCommonTypeOfTuple2.js
@@ -27,7 +27,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/callChainWithSuper(target=es5).js b/tests/baselines/reference/callChainWithSuper(target=es5).js
index 5487991bc29..e4f387b0404 100644
--- a/tests/baselines/reference/callChainWithSuper(target=es5).js
+++ b/tests/baselines/reference/callChainWithSuper(target=es5).js
@@ -12,7 +12,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/callSignatureAssignabilityInInheritance2.js b/tests/baselines/reference/callSignatureAssignabilityInInheritance2.js
index e139bcca598..cd48becfa01 100644
--- a/tests/baselines/reference/callSignatureAssignabilityInInheritance2.js
+++ b/tests/baselines/reference/callSignatureAssignabilityInInheritance2.js
@@ -75,7 +75,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/callSignatureAssignabilityInInheritance3.js b/tests/baselines/reference/callSignatureAssignabilityInInheritance3.js
index b8a024a8a09..452511dc705 100644
--- a/tests/baselines/reference/callSignatureAssignabilityInInheritance3.js
+++ b/tests/baselines/reference/callSignatureAssignabilityInInheritance3.js
@@ -120,7 +120,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/callSignatureAssignabilityInInheritance4.js b/tests/baselines/reference/callSignatureAssignabilityInInheritance4.js
index a969d77fb03..dd10effafcd 100644
--- a/tests/baselines/reference/callSignatureAssignabilityInInheritance4.js
+++ b/tests/baselines/reference/callSignatureAssignabilityInInheritance4.js
@@ -55,7 +55,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/callSignatureAssignabilityInInheritance5.js b/tests/baselines/reference/callSignatureAssignabilityInInheritance5.js
index cf8889cbf27..4eef3f6c92d 100644
--- a/tests/baselines/reference/callSignatureAssignabilityInInheritance5.js
+++ b/tests/baselines/reference/callSignatureAssignabilityInInheritance5.js
@@ -55,7 +55,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/callSignatureAssignabilityInInheritance6.js b/tests/baselines/reference/callSignatureAssignabilityInInheritance6.js
index baa98cb72d5..c126c12db41 100644
--- a/tests/baselines/reference/callSignatureAssignabilityInInheritance6.js
+++ b/tests/baselines/reference/callSignatureAssignabilityInInheritance6.js
@@ -58,7 +58,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/callWithSpread.js b/tests/baselines/reference/callWithSpread.js
index ee0ab6fe8a7..a6023e05cb3 100644
--- a/tests/baselines/reference/callWithSpread.js
+++ b/tests/baselines/reference/callWithSpread.js
@@ -63,7 +63,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/captureSuperPropertyAccessInSuperCall01.js b/tests/baselines/reference/captureSuperPropertyAccessInSuperCall01.js
index dd433fc1db7..116dd3446a4 100644
--- a/tests/baselines/reference/captureSuperPropertyAccessInSuperCall01.js
+++ b/tests/baselines/reference/captureSuperPropertyAccessInSuperCall01.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/captureThisInSuperCall.js b/tests/baselines/reference/captureThisInSuperCall.js
index 919f8491114..1d6b2d4c0d7 100644
--- a/tests/baselines/reference/captureThisInSuperCall.js
+++ b/tests/baselines/reference/captureThisInSuperCall.js
@@ -13,7 +13,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/castingTuple.js b/tests/baselines/reference/castingTuple.js
index ac21b229a3c..445ab000793 100644
--- a/tests/baselines/reference/castingTuple.js
+++ b/tests/baselines/reference/castingTuple.js
@@ -39,7 +39,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/chainedAssignment3.js b/tests/baselines/reference/chainedAssignment3.js
index c3e73310188..4e95452a34a 100644
--- a/tests/baselines/reference/chainedAssignment3.js
+++ b/tests/baselines/reference/chainedAssignment3.js
@@ -27,7 +27,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter.js b/tests/baselines/reference/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter.js
index 69ecf8cd52d..eaab9240ccb 100644
--- a/tests/baselines/reference/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter.js
+++ b/tests/baselines/reference/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter.js
@@ -24,7 +24,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/checkForObjectTooStrict.js b/tests/baselines/reference/checkForObjectTooStrict.js
index d03127eaa7d..7c1289ab988 100644
--- a/tests/baselines/reference/checkForObjectTooStrict.js
+++ b/tests/baselines/reference/checkForObjectTooStrict.js
@@ -36,7 +36,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/checkJsxChildrenCanBeTupleType.js b/tests/baselines/reference/checkJsxChildrenCanBeTupleType.js
index 30e59613eb9..6e5471d3554 100644
--- a/tests/baselines/reference/checkJsxChildrenCanBeTupleType.js
+++ b/tests/baselines/reference/checkJsxChildrenCanBeTupleType.js
@@ -28,7 +28,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/checkJsxChildrenProperty12.js b/tests/baselines/reference/checkJsxChildrenProperty12.js
index 44fe4e1053d..473e8c3db05 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty12.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty12.js
@@ -38,7 +38,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/checkJsxChildrenProperty13.js b/tests/baselines/reference/checkJsxChildrenProperty13.js
index dcdf7ac1e88..d00090827cd 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty13.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty13.js
@@ -33,7 +33,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/checkJsxChildrenProperty14.js b/tests/baselines/reference/checkJsxChildrenProperty14.js
index 12051095b6a..1a899273628 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty14.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty14.js
@@ -48,7 +48,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/checkJsxChildrenProperty3.js b/tests/baselines/reference/checkJsxChildrenProperty3.js
index 7ebf2ec717a..a516fa4e7ca 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty3.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty3.js
@@ -45,7 +45,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/checkJsxChildrenProperty4.js b/tests/baselines/reference/checkJsxChildrenProperty4.js
index 02480bc17c9..b070f529c3a 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty4.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty4.js
@@ -50,7 +50,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/checkJsxChildrenProperty5.js b/tests/baselines/reference/checkJsxChildrenProperty5.js
index 2e29ee2a2fb..ecef158f7df 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty5.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty5.js
@@ -36,7 +36,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/checkJsxChildrenProperty6.js b/tests/baselines/reference/checkJsxChildrenProperty6.js
index 825f38b92ac..79806db7d13 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty6.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty6.js
@@ -49,7 +49,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/checkJsxChildrenProperty7.js b/tests/baselines/reference/checkJsxChildrenProperty7.js
index a8b5e4e9fa4..d8a7eda58d8 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty7.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty7.js
@@ -34,7 +34,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/checkJsxChildrenProperty8.js b/tests/baselines/reference/checkJsxChildrenProperty8.js
index f085c94f5ed..df8481201d9 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty8.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty8.js
@@ -35,7 +35,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/checkJsxIntersectionElementPropsType.js b/tests/baselines/reference/checkJsxIntersectionElementPropsType.js
index cbdf2835c0b..c03b09776a1 100644
--- a/tests/baselines/reference/checkJsxIntersectionElementPropsType.js
+++ b/tests/baselines/reference/checkJsxIntersectionElementPropsType.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/checkJsxSubtleSkipContextSensitiveBug.js b/tests/baselines/reference/checkJsxSubtleSkipContextSensitiveBug.js
index d1d6dd7eeec..3ec9c4748f3 100644
--- a/tests/baselines/reference/checkJsxSubtleSkipContextSensitiveBug.js
+++ b/tests/baselines/reference/checkJsxSubtleSkipContextSensitiveBug.js
@@ -30,7 +30,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/checkSuperCallBeforeThisAccessing1.js b/tests/baselines/reference/checkSuperCallBeforeThisAccessing1.js
index e507ddaecc1..e2a0b9fd974 100644
--- a/tests/baselines/reference/checkSuperCallBeforeThisAccessing1.js
+++ b/tests/baselines/reference/checkSuperCallBeforeThisAccessing1.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/checkSuperCallBeforeThisAccessing2.js b/tests/baselines/reference/checkSuperCallBeforeThisAccessing2.js
index 74a40ba6f29..ad952eaef93 100644
--- a/tests/baselines/reference/checkSuperCallBeforeThisAccessing2.js
+++ b/tests/baselines/reference/checkSuperCallBeforeThisAccessing2.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/checkSuperCallBeforeThisAccessing3.js b/tests/baselines/reference/checkSuperCallBeforeThisAccessing3.js
index 199ab08d993..4e82c02289a 100644
--- a/tests/baselines/reference/checkSuperCallBeforeThisAccessing3.js
+++ b/tests/baselines/reference/checkSuperCallBeforeThisAccessing3.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/checkSuperCallBeforeThisAccessing4.js b/tests/baselines/reference/checkSuperCallBeforeThisAccessing4.js
index fcb45365bfc..2e7362011ea 100644
--- a/tests/baselines/reference/checkSuperCallBeforeThisAccessing4.js
+++ b/tests/baselines/reference/checkSuperCallBeforeThisAccessing4.js
@@ -24,7 +24,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/checkSuperCallBeforeThisAccessing5.js b/tests/baselines/reference/checkSuperCallBeforeThisAccessing5.js
index c6372d5a436..9892036498c 100644
--- a/tests/baselines/reference/checkSuperCallBeforeThisAccessing5.js
+++ b/tests/baselines/reference/checkSuperCallBeforeThisAccessing5.js
@@ -12,7 +12,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/checkSuperCallBeforeThisAccessing6.js b/tests/baselines/reference/checkSuperCallBeforeThisAccessing6.js
index 5e0e9000e7d..e6d470d18ab 100644
--- a/tests/baselines/reference/checkSuperCallBeforeThisAccessing6.js
+++ b/tests/baselines/reference/checkSuperCallBeforeThisAccessing6.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/checkSuperCallBeforeThisAccessing7.js b/tests/baselines/reference/checkSuperCallBeforeThisAccessing7.js
index 2c32bc82248..e2d928e274a 100644
--- a/tests/baselines/reference/checkSuperCallBeforeThisAccessing7.js
+++ b/tests/baselines/reference/checkSuperCallBeforeThisAccessing7.js
@@ -14,7 +14,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/checkSuperCallBeforeThisAccessing8.js b/tests/baselines/reference/checkSuperCallBeforeThisAccessing8.js
index 74bd178a888..fc9947922be 100644
--- a/tests/baselines/reference/checkSuperCallBeforeThisAccessing8.js
+++ b/tests/baselines/reference/checkSuperCallBeforeThisAccessing8.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/circularConstraintYieldsAppropriateError.js b/tests/baselines/reference/circularConstraintYieldsAppropriateError.js
index 175f48d4bca..c70256dc0ee 100644
--- a/tests/baselines/reference/circularConstraintYieldsAppropriateError.js
+++ b/tests/baselines/reference/circularConstraintYieldsAppropriateError.js
@@ -22,7 +22,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/circularImportAlias.js b/tests/baselines/reference/circularImportAlias.js
index 11049041b18..61714903f27 100644
--- a/tests/baselines/reference/circularImportAlias.js
+++ b/tests/baselines/reference/circularImportAlias.js
@@ -25,7 +25,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/circularTypeofWithFunctionModule.js b/tests/baselines/reference/circularTypeofWithFunctionModule.js
index 97dec519a99..cad38269608 100644
--- a/tests/baselines/reference/circularTypeofWithFunctionModule.js
+++ b/tests/baselines/reference/circularTypeofWithFunctionModule.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classAbstractConstructorAssignability.js b/tests/baselines/reference/classAbstractConstructorAssignability.js
index b19f6788fed..6271ffbe3b8 100644
--- a/tests/baselines/reference/classAbstractConstructorAssignability.js
+++ b/tests/baselines/reference/classAbstractConstructorAssignability.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classAbstractCrashedOnce.js b/tests/baselines/reference/classAbstractCrashedOnce.js
index ec0680fe873..79359ab4465 100644
--- a/tests/baselines/reference/classAbstractCrashedOnce.js
+++ b/tests/baselines/reference/classAbstractCrashedOnce.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classAbstractExtends.js b/tests/baselines/reference/classAbstractExtends.js
index 24357c0bdc6..b0502d1273b 100644
--- a/tests/baselines/reference/classAbstractExtends.js
+++ b/tests/baselines/reference/classAbstractExtends.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classAbstractFactoryFunction.js b/tests/baselines/reference/classAbstractFactoryFunction.js
index 002b065c641..0d4625d09ff 100644
--- a/tests/baselines/reference/classAbstractFactoryFunction.js
+++ b/tests/baselines/reference/classAbstractFactoryFunction.js
@@ -21,7 +21,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classAbstractGeneric.js b/tests/baselines/reference/classAbstractGeneric.js
index e7e77bd47df..9911f0b28ff 100644
--- a/tests/baselines/reference/classAbstractGeneric.js
+++ b/tests/baselines/reference/classAbstractGeneric.js
@@ -30,7 +30,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classAbstractInAModule.js b/tests/baselines/reference/classAbstractInAModule.js
index ff2103d78ac..145012421d7 100644
--- a/tests/baselines/reference/classAbstractInAModule.js
+++ b/tests/baselines/reference/classAbstractInAModule.js
@@ -12,7 +12,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classAbstractInheritance.js b/tests/baselines/reference/classAbstractInheritance.js
index 478c2f5979d..401eea03d4e 100644
--- a/tests/baselines/reference/classAbstractInheritance.js
+++ b/tests/baselines/reference/classAbstractInheritance.js
@@ -26,7 +26,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classAbstractInstantiations1.js b/tests/baselines/reference/classAbstractInstantiations1.js
index fc3a2448346..6537cb7b5f8 100644
--- a/tests/baselines/reference/classAbstractInstantiations1.js
+++ b/tests/baselines/reference/classAbstractInstantiations1.js
@@ -31,7 +31,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classAbstractInstantiations2.js b/tests/baselines/reference/classAbstractInstantiations2.js
index 4beafc415f7..ccf19cf6ec0 100644
--- a/tests/baselines/reference/classAbstractInstantiations2.js
+++ b/tests/baselines/reference/classAbstractInstantiations2.js
@@ -56,7 +56,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classAbstractOverrideWithAbstract.js b/tests/baselines/reference/classAbstractOverrideWithAbstract.js
index 1765b8958c8..e8eaf3f23fb 100644
--- a/tests/baselines/reference/classAbstractOverrideWithAbstract.js
+++ b/tests/baselines/reference/classAbstractOverrideWithAbstract.js
@@ -28,7 +28,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classAbstractSuperCalls.js b/tests/baselines/reference/classAbstractSuperCalls.js
index f812c4425a8..500bc204745 100644
--- a/tests/baselines/reference/classAbstractSuperCalls.js
+++ b/tests/baselines/reference/classAbstractSuperCalls.js
@@ -31,7 +31,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classAbstractUsingAbstractMethod1.js b/tests/baselines/reference/classAbstractUsingAbstractMethod1.js
index 9f855223f17..8dea56e1139 100644
--- a/tests/baselines/reference/classAbstractUsingAbstractMethod1.js
+++ b/tests/baselines/reference/classAbstractUsingAbstractMethod1.js
@@ -22,7 +22,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classAbstractUsingAbstractMethods2.js b/tests/baselines/reference/classAbstractUsingAbstractMethods2.js
index 0a8e4893496..32b633e38c6 100644
--- a/tests/baselines/reference/classAbstractUsingAbstractMethods2.js
+++ b/tests/baselines/reference/classAbstractUsingAbstractMethods2.js
@@ -32,7 +32,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classConstructorAccessibility2.js b/tests/baselines/reference/classConstructorAccessibility2.js
index 1868df64fd8..acd33e4b424 100644
--- a/tests/baselines/reference/classConstructorAccessibility2.js
+++ b/tests/baselines/reference/classConstructorAccessibility2.js
@@ -50,7 +50,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classConstructorAccessibility4.js b/tests/baselines/reference/classConstructorAccessibility4.js
index 412f4f95bca..3793df8cffa 100644
--- a/tests/baselines/reference/classConstructorAccessibility4.js
+++ b/tests/baselines/reference/classConstructorAccessibility4.js
@@ -34,7 +34,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classConstructorAccessibility5.js b/tests/baselines/reference/classConstructorAccessibility5.js
index ec950634e11..5c80f776cc3 100644
--- a/tests/baselines/reference/classConstructorAccessibility5.js
+++ b/tests/baselines/reference/classConstructorAccessibility5.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classConstructorParametersAccessibility.js b/tests/baselines/reference/classConstructorParametersAccessibility.js
index 2bb0f49a481..982ea31c60b 100644
--- a/tests/baselines/reference/classConstructorParametersAccessibility.js
+++ b/tests/baselines/reference/classConstructorParametersAccessibility.js
@@ -31,7 +31,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classConstructorParametersAccessibility2.js b/tests/baselines/reference/classConstructorParametersAccessibility2.js
index de647fc282a..4985a4f998f 100644
--- a/tests/baselines/reference/classConstructorParametersAccessibility2.js
+++ b/tests/baselines/reference/classConstructorParametersAccessibility2.js
@@ -31,7 +31,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classConstructorParametersAccessibility3.js b/tests/baselines/reference/classConstructorParametersAccessibility3.js
index bf034cde19b..d498ec60658 100644
--- a/tests/baselines/reference/classConstructorParametersAccessibility3.js
+++ b/tests/baselines/reference/classConstructorParametersAccessibility3.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classDeclarationMergedInModuleWithContinuation.js b/tests/baselines/reference/classDeclarationMergedInModuleWithContinuation.js
index 53ed374116f..16f450c58fe 100644
--- a/tests/baselines/reference/classDeclarationMergedInModuleWithContinuation.js
+++ b/tests/baselines/reference/classDeclarationMergedInModuleWithContinuation.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classDeclaredBeforeClassFactory.js b/tests/baselines/reference/classDeclaredBeforeClassFactory.js
index 78fee53c66c..3e3157abf90 100644
--- a/tests/baselines/reference/classDeclaredBeforeClassFactory.js
+++ b/tests/baselines/reference/classDeclaredBeforeClassFactory.js
@@ -12,7 +12,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classDoesNotDependOnBaseTypes.js b/tests/baselines/reference/classDoesNotDependOnBaseTypes.js
index 0a3e6698f3c..dd59dc871d5 100644
--- a/tests/baselines/reference/classDoesNotDependOnBaseTypes.js
+++ b/tests/baselines/reference/classDoesNotDependOnBaseTypes.js
@@ -17,7 +17,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExpression2.js b/tests/baselines/reference/classExpression2.js
index 3ad11c2b731..4d255bd2522 100644
--- a/tests/baselines/reference/classExpression2.js
+++ b/tests/baselines/reference/classExpression2.js
@@ -7,7 +7,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExpression3.js b/tests/baselines/reference/classExpression3.js
index a87515f3f2f..bce9b608857 100644
--- a/tests/baselines/reference/classExpression3.js
+++ b/tests/baselines/reference/classExpression3.js
@@ -11,7 +11,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExpressionExtendingAbstractClass.js b/tests/baselines/reference/classExpressionExtendingAbstractClass.js
index fe8e4ce19df..6437f90e348 100644
--- a/tests/baselines/reference/classExpressionExtendingAbstractClass.js
+++ b/tests/baselines/reference/classExpressionExtendingAbstractClass.js
@@ -13,7 +13,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExpressionInClassStaticDeclarations.js b/tests/baselines/reference/classExpressionInClassStaticDeclarations.js
index cb635f9eee2..46af4ab6644 100644
--- a/tests/baselines/reference/classExpressionInClassStaticDeclarations.js
+++ b/tests/baselines/reference/classExpressionInClassStaticDeclarations.js
@@ -8,7 +8,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtendingBuiltinType.js b/tests/baselines/reference/classExtendingBuiltinType.js
index 8d2c2dfdd31..79a28548374 100644
--- a/tests/baselines/reference/classExtendingBuiltinType.js
+++ b/tests/baselines/reference/classExtendingBuiltinType.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtendingClass.js b/tests/baselines/reference/classExtendingClass.js
index cd462784c4f..45d3c636065 100644
--- a/tests/baselines/reference/classExtendingClass.js
+++ b/tests/baselines/reference/classExtendingClass.js
@@ -36,7 +36,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtendingClassLikeType.js b/tests/baselines/reference/classExtendingClassLikeType.js
index 016454073ec..b86cdb08868 100644
--- a/tests/baselines/reference/classExtendingClassLikeType.js
+++ b/tests/baselines/reference/classExtendingClassLikeType.js
@@ -63,7 +63,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtendingNonConstructor.js b/tests/baselines/reference/classExtendingNonConstructor.js
index c83ea16696e..e130e5b4c78 100644
--- a/tests/baselines/reference/classExtendingNonConstructor.js
+++ b/tests/baselines/reference/classExtendingNonConstructor.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtendingNull.js b/tests/baselines/reference/classExtendingNull.js
index 99c8fb76501..cc647aa93a8 100644
--- a/tests/baselines/reference/classExtendingNull.js
+++ b/tests/baselines/reference/classExtendingNull.js
@@ -9,7 +9,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtendingPrimitive.js b/tests/baselines/reference/classExtendingPrimitive.js
index 8ad1eb89c1b..d208606cfa1 100644
--- a/tests/baselines/reference/classExtendingPrimitive.js
+++ b/tests/baselines/reference/classExtendingPrimitive.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtendingPrimitive2.js b/tests/baselines/reference/classExtendingPrimitive2.js
index b6524e2bd04..f21f0c0297d 100644
--- a/tests/baselines/reference/classExtendingPrimitive2.js
+++ b/tests/baselines/reference/classExtendingPrimitive2.js
@@ -10,7 +10,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtendingQualifiedName.js b/tests/baselines/reference/classExtendingQualifiedName.js
index 1465af9739a..95fb0188eac 100644
--- a/tests/baselines/reference/classExtendingQualifiedName.js
+++ b/tests/baselines/reference/classExtendingQualifiedName.js
@@ -12,7 +12,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtendingQualifiedName2.js b/tests/baselines/reference/classExtendingQualifiedName2.js
index 20e9994ea2e..4be2ff4e4dd 100644
--- a/tests/baselines/reference/classExtendingQualifiedName2.js
+++ b/tests/baselines/reference/classExtendingQualifiedName2.js
@@ -12,7 +12,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtendsAcrossFiles.js b/tests/baselines/reference/classExtendsAcrossFiles.js
index 3dad0dbc634..7bdbb074824 100644
--- a/tests/baselines/reference/classExtendsAcrossFiles.js
+++ b/tests/baselines/reference/classExtendsAcrossFiles.js
@@ -25,7 +25,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
@@ -59,7 +59,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtendsClauseClassMergedWithModuleNotReferingConstructor.js b/tests/baselines/reference/classExtendsClauseClassMergedWithModuleNotReferingConstructor.js
index 18dd63364b6..62a0d7515f8 100644
--- a/tests/baselines/reference/classExtendsClauseClassMergedWithModuleNotReferingConstructor.js
+++ b/tests/baselines/reference/classExtendsClauseClassMergedWithModuleNotReferingConstructor.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtendsClauseClassNotReferringConstructor.js b/tests/baselines/reference/classExtendsClauseClassNotReferringConstructor.js
index f746f36daef..cb445a38154 100644
--- a/tests/baselines/reference/classExtendsClauseClassNotReferringConstructor.js
+++ b/tests/baselines/reference/classExtendsClauseClassNotReferringConstructor.js
@@ -11,7 +11,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtendsEveryObjectType.js b/tests/baselines/reference/classExtendsEveryObjectType.js
index 7fcb678fc65..2b650f3e5ba 100644
--- a/tests/baselines/reference/classExtendsEveryObjectType.js
+++ b/tests/baselines/reference/classExtendsEveryObjectType.js
@@ -21,7 +21,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtendsEveryObjectType2.js b/tests/baselines/reference/classExtendsEveryObjectType2.js
index f8c5f110389..38441aa1294 100644
--- a/tests/baselines/reference/classExtendsEveryObjectType2.js
+++ b/tests/baselines/reference/classExtendsEveryObjectType2.js
@@ -8,7 +8,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtendsInterface.js b/tests/baselines/reference/classExtendsInterface.js
index 047e6161354..1d962816bad 100644
--- a/tests/baselines/reference/classExtendsInterface.js
+++ b/tests/baselines/reference/classExtendsInterface.js
@@ -13,7 +13,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtendsInterfaceInExpression.js b/tests/baselines/reference/classExtendsInterfaceInExpression.js
index a930feed6cf..80f4a4110c4 100644
--- a/tests/baselines/reference/classExtendsInterfaceInExpression.js
+++ b/tests/baselines/reference/classExtendsInterfaceInExpression.js
@@ -13,7 +13,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtendsInterfaceInModule.js b/tests/baselines/reference/classExtendsInterfaceInModule.js
index 7aa057a9227..97f4f0b53c8 100644
--- a/tests/baselines/reference/classExtendsInterfaceInModule.js
+++ b/tests/baselines/reference/classExtendsInterfaceInModule.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtendsInterface_not.js b/tests/baselines/reference/classExtendsInterface_not.js
index 238a00bbbd2..2f6312bea84 100644
--- a/tests/baselines/reference/classExtendsInterface_not.js
+++ b/tests/baselines/reference/classExtendsInterface_not.js
@@ -7,7 +7,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtendsItself.js b/tests/baselines/reference/classExtendsItself.js
index ba71ae1df91..eb93feb46c4 100644
--- a/tests/baselines/reference/classExtendsItself.js
+++ b/tests/baselines/reference/classExtendsItself.js
@@ -10,7 +10,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtendsItselfIndirectly.js b/tests/baselines/reference/classExtendsItselfIndirectly.js
index 04d5a9879d5..9b7f4a4b97d 100644
--- a/tests/baselines/reference/classExtendsItselfIndirectly.js
+++ b/tests/baselines/reference/classExtendsItselfIndirectly.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtendsItselfIndirectly2.js b/tests/baselines/reference/classExtendsItselfIndirectly2.js
index 310d96ee7ab..96a2753dfa0 100644
--- a/tests/baselines/reference/classExtendsItselfIndirectly2.js
+++ b/tests/baselines/reference/classExtendsItselfIndirectly2.js
@@ -27,7 +27,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtendsItselfIndirectly3.js b/tests/baselines/reference/classExtendsItselfIndirectly3.js
index af882e651d0..e94d4a2d95a 100644
--- a/tests/baselines/reference/classExtendsItselfIndirectly3.js
+++ b/tests/baselines/reference/classExtendsItselfIndirectly3.js
@@ -23,7 +23,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
@@ -44,7 +44,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
@@ -65,7 +65,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
@@ -86,7 +86,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
@@ -107,7 +107,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
@@ -128,7 +128,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtendsMultipleBaseClasses.js b/tests/baselines/reference/classExtendsMultipleBaseClasses.js
index 1727a582238..c14195c7528 100644
--- a/tests/baselines/reference/classExtendsMultipleBaseClasses.js
+++ b/tests/baselines/reference/classExtendsMultipleBaseClasses.js
@@ -8,7 +8,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtendsNull.js b/tests/baselines/reference/classExtendsNull.js
index 2fef0e405f1..66854df5be5 100644
--- a/tests/baselines/reference/classExtendsNull.js
+++ b/tests/baselines/reference/classExtendsNull.js
@@ -17,7 +17,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtendsShadowedConstructorFunction.js b/tests/baselines/reference/classExtendsShadowedConstructorFunction.js
index 3b86d7739cd..fb4d3a1a92e 100644
--- a/tests/baselines/reference/classExtendsShadowedConstructorFunction.js
+++ b/tests/baselines/reference/classExtendsShadowedConstructorFunction.js
@@ -13,7 +13,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtendsValidConstructorFunction.js b/tests/baselines/reference/classExtendsValidConstructorFunction.js
index 6570beaf8c9..b38dba23f8e 100644
--- a/tests/baselines/reference/classExtendsValidConstructorFunction.js
+++ b/tests/baselines/reference/classExtendsValidConstructorFunction.js
@@ -10,7 +10,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classExtensionNameOutput.js b/tests/baselines/reference/classExtensionNameOutput.js
index e2c80c242e4..42a14957248 100644
--- a/tests/baselines/reference/classExtensionNameOutput.js
+++ b/tests/baselines/reference/classExtensionNameOutput.js
@@ -13,7 +13,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classHeritageWithTrailingSeparator.js b/tests/baselines/reference/classHeritageWithTrailingSeparator.js
index 993a8c37afb..c83c40f316e 100644
--- a/tests/baselines/reference/classHeritageWithTrailingSeparator.js
+++ b/tests/baselines/reference/classHeritageWithTrailingSeparator.js
@@ -8,7 +8,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classImplementsClass2.js b/tests/baselines/reference/classImplementsClass2.js
index ac9348b90a2..c4e9c251ec2 100644
--- a/tests/baselines/reference/classImplementsClass2.js
+++ b/tests/baselines/reference/classImplementsClass2.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classImplementsClass3.js b/tests/baselines/reference/classImplementsClass3.js
index e06c47c60cf..c6defc03dba 100644
--- a/tests/baselines/reference/classImplementsClass3.js
+++ b/tests/baselines/reference/classImplementsClass3.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classImplementsClass4.js b/tests/baselines/reference/classImplementsClass4.js
index dfba80d1543..da252102405 100644
--- a/tests/baselines/reference/classImplementsClass4.js
+++ b/tests/baselines/reference/classImplementsClass4.js
@@ -21,7 +21,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classImplementsClass5.js b/tests/baselines/reference/classImplementsClass5.js
index 0ab2ff23fdd..367909e3886 100644
--- a/tests/baselines/reference/classImplementsClass5.js
+++ b/tests/baselines/reference/classImplementsClass5.js
@@ -22,7 +22,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classImplementsClass6.js b/tests/baselines/reference/classImplementsClass6.js
index 28e8b574403..09c270f3b74 100644
--- a/tests/baselines/reference/classImplementsClass6.js
+++ b/tests/baselines/reference/classImplementsClass6.js
@@ -26,7 +26,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classIndexer3.js b/tests/baselines/reference/classIndexer3.js
index 217bfa7958e..f90534fc351 100644
--- a/tests/baselines/reference/classIndexer3.js
+++ b/tests/baselines/reference/classIndexer3.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classInheritence.js b/tests/baselines/reference/classInheritence.js
index 99206a1e8ff..867620d49bf 100644
--- a/tests/baselines/reference/classInheritence.js
+++ b/tests/baselines/reference/classInheritence.js
@@ -7,7 +7,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classIsSubtypeOfBaseType.js b/tests/baselines/reference/classIsSubtypeOfBaseType.js
index c185c546ad9..9c8c759031b 100644
--- a/tests/baselines/reference/classIsSubtypeOfBaseType.js
+++ b/tests/baselines/reference/classIsSubtypeOfBaseType.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classMergedWithInterfaceMultipleBasesNoError.js b/tests/baselines/reference/classMergedWithInterfaceMultipleBasesNoError.js
index 16eb43631c9..b2343d7c92a 100644
--- a/tests/baselines/reference/classMergedWithInterfaceMultipleBasesNoError.js
+++ b/tests/baselines/reference/classMergedWithInterfaceMultipleBasesNoError.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classOrder2.js b/tests/baselines/reference/classOrder2.js
index 27a8d9091dd..d8a5f67e92d 100644
--- a/tests/baselines/reference/classOrder2.js
+++ b/tests/baselines/reference/classOrder2.js
@@ -23,7 +23,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classOrderBug.js b/tests/baselines/reference/classOrderBug.js
index 6660407f8ad..5592ce91fba 100644
--- a/tests/baselines/reference/classOrderBug.js
+++ b/tests/baselines/reference/classOrderBug.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classSideInheritance1.js b/tests/baselines/reference/classSideInheritance1.js
index 0cce6704987..3ed58d51b80 100644
--- a/tests/baselines/reference/classSideInheritance1.js
+++ b/tests/baselines/reference/classSideInheritance1.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classSideInheritance2.js b/tests/baselines/reference/classSideInheritance2.js
index 0794de5d946..8ef339c9572 100644
--- a/tests/baselines/reference/classSideInheritance2.js
+++ b/tests/baselines/reference/classSideInheritance2.js
@@ -25,7 +25,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classSideInheritance3.js b/tests/baselines/reference/classSideInheritance3.js
index e407b85ecfb..9a06c6a9698 100644
--- a/tests/baselines/reference/classSideInheritance3.js
+++ b/tests/baselines/reference/classSideInheritance3.js
@@ -23,7 +23,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classUpdateTests.js b/tests/baselines/reference/classUpdateTests.js
index 916ac9baa47..9e85b741461 100644
--- a/tests/baselines/reference/classUpdateTests.js
+++ b/tests/baselines/reference/classUpdateTests.js
@@ -118,7 +118,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classUsedBeforeInitializedVariables.js b/tests/baselines/reference/classUsedBeforeInitializedVariables.js
index 3a3591cfdad..a6688a5ded3 100644
--- a/tests/baselines/reference/classUsedBeforeInitializedVariables.js
+++ b/tests/baselines/reference/classUsedBeforeInitializedVariables.js
@@ -44,7 +44,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classWithBaseClassButNoConstructor.js b/tests/baselines/reference/classWithBaseClassButNoConstructor.js
index 54b0fd482e5..c01bacfc460 100644
--- a/tests/baselines/reference/classWithBaseClassButNoConstructor.js
+++ b/tests/baselines/reference/classWithBaseClassButNoConstructor.js
@@ -45,7 +45,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classWithConstructors.js b/tests/baselines/reference/classWithConstructors.js
index db3fcb05a34..6a3d9ebf846 100644
--- a/tests/baselines/reference/classWithConstructors.js
+++ b/tests/baselines/reference/classWithConstructors.js
@@ -54,7 +54,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classWithProtectedProperty.js b/tests/baselines/reference/classWithProtectedProperty.js
index 91d4564a5d3..5858da7f92c 100644
--- a/tests/baselines/reference/classWithProtectedProperty.js
+++ b/tests/baselines/reference/classWithProtectedProperty.js
@@ -33,7 +33,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classWithStaticMembers.js b/tests/baselines/reference/classWithStaticMembers.js
index a97208519aa..2307a09468c 100644
--- a/tests/baselines/reference/classWithStaticMembers.js
+++ b/tests/baselines/reference/classWithStaticMembers.js
@@ -24,7 +24,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/classdecl.js b/tests/baselines/reference/classdecl.js
index 43d67d0cb11..40e74472c9f 100644
--- a/tests/baselines/reference/classdecl.js
+++ b/tests/baselines/reference/classdecl.js
@@ -98,7 +98,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/cloduleGenericOnSelfMember.js b/tests/baselines/reference/cloduleGenericOnSelfMember.js
index fbd431d4709..7e20d4a1b13 100644
--- a/tests/baselines/reference/cloduleGenericOnSelfMember.js
+++ b/tests/baselines/reference/cloduleGenericOnSelfMember.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/clodulesDerivedClasses.js b/tests/baselines/reference/clodulesDerivedClasses.js
index 1d522b86089..5ad9e844032 100644
--- a/tests/baselines/reference/clodulesDerivedClasses.js
+++ b/tests/baselines/reference/clodulesDerivedClasses.js
@@ -27,7 +27,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/collisionSuperAndLocalFunctionInAccessors.js b/tests/baselines/reference/collisionSuperAndLocalFunctionInAccessors.js
index e6a09cea65b..0ba26f089cb 100644
--- a/tests/baselines/reference/collisionSuperAndLocalFunctionInAccessors.js
+++ b/tests/baselines/reference/collisionSuperAndLocalFunctionInAccessors.js
@@ -44,7 +44,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/collisionSuperAndLocalFunctionInConstructor.js b/tests/baselines/reference/collisionSuperAndLocalFunctionInConstructor.js
index abb43068394..743ce5b44b3 100644
--- a/tests/baselines/reference/collisionSuperAndLocalFunctionInConstructor.js
+++ b/tests/baselines/reference/collisionSuperAndLocalFunctionInConstructor.js
@@ -29,7 +29,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/collisionSuperAndLocalFunctionInMethod.js b/tests/baselines/reference/collisionSuperAndLocalFunctionInMethod.js
index 30bd47f7cdc..1089eb7ff65 100644
--- a/tests/baselines/reference/collisionSuperAndLocalFunctionInMethod.js
+++ b/tests/baselines/reference/collisionSuperAndLocalFunctionInMethod.js
@@ -33,7 +33,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/collisionSuperAndLocalFunctionInProperty.js b/tests/baselines/reference/collisionSuperAndLocalFunctionInProperty.js
index 7f1f6d38c95..0f0015ac2ec 100644
--- a/tests/baselines/reference/collisionSuperAndLocalFunctionInProperty.js
+++ b/tests/baselines/reference/collisionSuperAndLocalFunctionInProperty.js
@@ -23,7 +23,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/collisionSuperAndLocalVarInAccessors.js b/tests/baselines/reference/collisionSuperAndLocalVarInAccessors.js
index 3fb07f807d4..0f3154f114d 100644
--- a/tests/baselines/reference/collisionSuperAndLocalVarInAccessors.js
+++ b/tests/baselines/reference/collisionSuperAndLocalVarInAccessors.js
@@ -37,7 +37,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/collisionSuperAndLocalVarInConstructor.js b/tests/baselines/reference/collisionSuperAndLocalVarInConstructor.js
index ffd052dfe75..708a8801ab7 100644
--- a/tests/baselines/reference/collisionSuperAndLocalVarInConstructor.js
+++ b/tests/baselines/reference/collisionSuperAndLocalVarInConstructor.js
@@ -25,7 +25,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/collisionSuperAndLocalVarInMethod.js b/tests/baselines/reference/collisionSuperAndLocalVarInMethod.js
index 110323d4973..84dcd93b0c2 100644
--- a/tests/baselines/reference/collisionSuperAndLocalVarInMethod.js
+++ b/tests/baselines/reference/collisionSuperAndLocalVarInMethod.js
@@ -23,7 +23,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/collisionSuperAndLocalVarInProperty.js b/tests/baselines/reference/collisionSuperAndLocalVarInProperty.js
index e1330ff822a..994eff30945 100644
--- a/tests/baselines/reference/collisionSuperAndLocalVarInProperty.js
+++ b/tests/baselines/reference/collisionSuperAndLocalVarInProperty.js
@@ -22,7 +22,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/collisionSuperAndNameResolution.js b/tests/baselines/reference/collisionSuperAndNameResolution.js
index e3df51d1f99..9c2ece1e9bc 100644
--- a/tests/baselines/reference/collisionSuperAndNameResolution.js
+++ b/tests/baselines/reference/collisionSuperAndNameResolution.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/collisionSuperAndParameter.js b/tests/baselines/reference/collisionSuperAndParameter.js
index f56a5bc1706..f875cb49332 100644
--- a/tests/baselines/reference/collisionSuperAndParameter.js
+++ b/tests/baselines/reference/collisionSuperAndParameter.js
@@ -67,7 +67,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/collisionSuperAndParameter1.js b/tests/baselines/reference/collisionSuperAndParameter1.js
index e06489e356a..b4c24b826e8 100644
--- a/tests/baselines/reference/collisionSuperAndParameter1.js
+++ b/tests/baselines/reference/collisionSuperAndParameter1.js
@@ -14,7 +14,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/collisionSuperAndPropertyNameAsConstuctorParameter.js b/tests/baselines/reference/collisionSuperAndPropertyNameAsConstuctorParameter.js
index 5e066b7ad09..543b4b7a770 100644
--- a/tests/baselines/reference/collisionSuperAndPropertyNameAsConstuctorParameter.js
+++ b/tests/baselines/reference/collisionSuperAndPropertyNameAsConstuctorParameter.js
@@ -35,7 +35,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/collisionThisExpressionAndLocalVarWithSuperExperssion.js b/tests/baselines/reference/collisionThisExpressionAndLocalVarWithSuperExperssion.js
index 0c952a75e2c..7ea936b2825 100644
--- a/tests/baselines/reference/collisionThisExpressionAndLocalVarWithSuperExperssion.js
+++ b/tests/baselines/reference/collisionThisExpressionAndLocalVarWithSuperExperssion.js
@@ -23,7 +23,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/commentsInheritance.js b/tests/baselines/reference/commentsInheritance.js
index 9779df371a2..4a9cf1d2391 100644
--- a/tests/baselines/reference/commentsInheritance.js
+++ b/tests/baselines/reference/commentsInheritance.js
@@ -155,7 +155,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/comparisonOperatorWithIdenticalObjects.js b/tests/baselines/reference/comparisonOperatorWithIdenticalObjects.js
index ca1da60a4a1..00fcdf35c92 100644
--- a/tests/baselines/reference/comparisonOperatorWithIdenticalObjects.js
+++ b/tests/baselines/reference/comparisonOperatorWithIdenticalObjects.js
@@ -199,7 +199,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/comparisonOperatorWithNoRelationshipObjectsOnCallSignature.js b/tests/baselines/reference/comparisonOperatorWithNoRelationshipObjectsOnCallSignature.js
index aa6a690d944..6fcb9fc0929 100644
--- a/tests/baselines/reference/comparisonOperatorWithNoRelationshipObjectsOnCallSignature.js
+++ b/tests/baselines/reference/comparisonOperatorWithNoRelationshipObjectsOnCallSignature.js
@@ -173,7 +173,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/comparisonOperatorWithNoRelationshipObjectsOnConstructorSignature.js b/tests/baselines/reference/comparisonOperatorWithNoRelationshipObjectsOnConstructorSignature.js
index 899dd0ef869..9cabb0eb459 100644
--- a/tests/baselines/reference/comparisonOperatorWithNoRelationshipObjectsOnConstructorSignature.js
+++ b/tests/baselines/reference/comparisonOperatorWithNoRelationshipObjectsOnConstructorSignature.js
@@ -173,7 +173,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/comparisonOperatorWithNoRelationshipObjectsOnIndexSignature.js b/tests/baselines/reference/comparisonOperatorWithNoRelationshipObjectsOnIndexSignature.js
index 767cdeb8fa1..b7f57a7fd9f 100644
--- a/tests/baselines/reference/comparisonOperatorWithNoRelationshipObjectsOnIndexSignature.js
+++ b/tests/baselines/reference/comparisonOperatorWithNoRelationshipObjectsOnIndexSignature.js
@@ -116,7 +116,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/comparisonOperatorWithNoRelationshipObjectsOnInstantiatedCallSignature.js b/tests/baselines/reference/comparisonOperatorWithNoRelationshipObjectsOnInstantiatedCallSignature.js
index 86f331fe7f8..41359728c97 100644
--- a/tests/baselines/reference/comparisonOperatorWithNoRelationshipObjectsOnInstantiatedCallSignature.js
+++ b/tests/baselines/reference/comparisonOperatorWithNoRelationshipObjectsOnInstantiatedCallSignature.js
@@ -154,7 +154,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/comparisonOperatorWithNoRelationshipObjectsOnInstantiatedConstructorSignature.js b/tests/baselines/reference/comparisonOperatorWithNoRelationshipObjectsOnInstantiatedConstructorSignature.js
index 47b05d80160..682ca7e9ab6 100644
--- a/tests/baselines/reference/comparisonOperatorWithNoRelationshipObjectsOnInstantiatedConstructorSignature.js
+++ b/tests/baselines/reference/comparisonOperatorWithNoRelationshipObjectsOnInstantiatedConstructorSignature.js
@@ -154,7 +154,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/comparisonOperatorWithSubtypeObjectOnCallSignature.js b/tests/baselines/reference/comparisonOperatorWithSubtypeObjectOnCallSignature.js
index 2ae8047795a..29d0b08ed76 100644
--- a/tests/baselines/reference/comparisonOperatorWithSubtypeObjectOnCallSignature.js
+++ b/tests/baselines/reference/comparisonOperatorWithSubtypeObjectOnCallSignature.js
@@ -264,7 +264,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/comparisonOperatorWithSubtypeObjectOnConstructorSignature.js b/tests/baselines/reference/comparisonOperatorWithSubtypeObjectOnConstructorSignature.js
index 9cb62f69f60..dd2d6164263 100644
--- a/tests/baselines/reference/comparisonOperatorWithSubtypeObjectOnConstructorSignature.js
+++ b/tests/baselines/reference/comparisonOperatorWithSubtypeObjectOnConstructorSignature.js
@@ -226,7 +226,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/comparisonOperatorWithSubtypeObjectOnIndexSignature.js b/tests/baselines/reference/comparisonOperatorWithSubtypeObjectOnIndexSignature.js
index b66a68fe3d7..5abc3dde4f1 100644
--- a/tests/baselines/reference/comparisonOperatorWithSubtypeObjectOnIndexSignature.js
+++ b/tests/baselines/reference/comparisonOperatorWithSubtypeObjectOnIndexSignature.js
@@ -112,7 +112,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/comparisonOperatorWithSubtypeObjectOnInstantiatedCallSignature.js b/tests/baselines/reference/comparisonOperatorWithSubtypeObjectOnInstantiatedCallSignature.js
index 84743940cf3..51c795ffacb 100644
--- a/tests/baselines/reference/comparisonOperatorWithSubtypeObjectOnInstantiatedCallSignature.js
+++ b/tests/baselines/reference/comparisonOperatorWithSubtypeObjectOnInstantiatedCallSignature.js
@@ -169,7 +169,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/comparisonOperatorWithSubtypeObjectOnInstantiatedConstructorSignature.js b/tests/baselines/reference/comparisonOperatorWithSubtypeObjectOnInstantiatedConstructorSignature.js
index 4a6566b993f..6c6fa0f4e1a 100644
--- a/tests/baselines/reference/comparisonOperatorWithSubtypeObjectOnInstantiatedConstructorSignature.js
+++ b/tests/baselines/reference/comparisonOperatorWithSubtypeObjectOnInstantiatedConstructorSignature.js
@@ -169,7 +169,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/comparisonOperatorWithSubtypeObjectOnProperty.js b/tests/baselines/reference/comparisonOperatorWithSubtypeObjectOnProperty.js
index 4bef13950ad..a140c4c8090 100644
--- a/tests/baselines/reference/comparisonOperatorWithSubtypeObjectOnProperty.js
+++ b/tests/baselines/reference/comparisonOperatorWithSubtypeObjectOnProperty.js
@@ -83,7 +83,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/complexClassRelationships.js b/tests/baselines/reference/complexClassRelationships.js
index ac5e231b44d..42fe3614ff6 100644
--- a/tests/baselines/reference/complexClassRelationships.js
+++ b/tests/baselines/reference/complexClassRelationships.js
@@ -52,7 +52,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/complicatedGenericRecursiveBaseClassReference.js b/tests/baselines/reference/complicatedGenericRecursiveBaseClassReference.js
index 96293dafa59..51738a7deda 100644
--- a/tests/baselines/reference/complicatedGenericRecursiveBaseClassReference.js
+++ b/tests/baselines/reference/complicatedGenericRecursiveBaseClassReference.js
@@ -10,7 +10,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/compoundAssignmentLHSIsValue.js b/tests/baselines/reference/compoundAssignmentLHSIsValue.js
index 0cd13bc7fff..815b9f671c7 100644
--- a/tests/baselines/reference/compoundAssignmentLHSIsValue.js
+++ b/tests/baselines/reference/compoundAssignmentLHSIsValue.js
@@ -127,7 +127,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/compoundExponentiationAssignmentLHSIsValue.js b/tests/baselines/reference/compoundExponentiationAssignmentLHSIsValue.js
index b3e1312cd69..6f04fba17d0 100644
--- a/tests/baselines/reference/compoundExponentiationAssignmentLHSIsValue.js
+++ b/tests/baselines/reference/compoundExponentiationAssignmentLHSIsValue.js
@@ -90,7 +90,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/computedPropertyNames24_ES5.js b/tests/baselines/reference/computedPropertyNames24_ES5.js
index 7dc995ad72e..1bbcd39b36c 100644
--- a/tests/baselines/reference/computedPropertyNames24_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames24_ES5.js
@@ -13,7 +13,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/computedPropertyNames25_ES5.js b/tests/baselines/reference/computedPropertyNames25_ES5.js
index bb728c8d6ad..eb9a200e83d 100644
--- a/tests/baselines/reference/computedPropertyNames25_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames25_ES5.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/computedPropertyNames26_ES5.js b/tests/baselines/reference/computedPropertyNames26_ES5.js
index a8efb6fa5a7..51d7ede91ae 100644
--- a/tests/baselines/reference/computedPropertyNames26_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames26_ES5.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/computedPropertyNames27_ES5.js b/tests/baselines/reference/computedPropertyNames27_ES5.js
index bafb780c3b1..2c1a8f9f665 100644
--- a/tests/baselines/reference/computedPropertyNames27_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames27_ES5.js
@@ -10,7 +10,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/computedPropertyNames28_ES5.js b/tests/baselines/reference/computedPropertyNames28_ES5.js
index ad5df468f13..d9c88696171 100644
--- a/tests/baselines/reference/computedPropertyNames28_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames28_ES5.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/computedPropertyNames30_ES5.js b/tests/baselines/reference/computedPropertyNames30_ES5.js
index 8342b3db263..e2754e8fcd8 100644
--- a/tests/baselines/reference/computedPropertyNames30_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames30_ES5.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/computedPropertyNames31_ES5.js b/tests/baselines/reference/computedPropertyNames31_ES5.js
index 1e0fe03a116..ba3f1287ce7 100644
--- a/tests/baselines/reference/computedPropertyNames31_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames31_ES5.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/computedPropertyNames43_ES5.js b/tests/baselines/reference/computedPropertyNames43_ES5.js
index 77371c9a58b..8cc3b7d31d5 100644
--- a/tests/baselines/reference/computedPropertyNames43_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames43_ES5.js
@@ -17,7 +17,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/computedPropertyNames44_ES5.js b/tests/baselines/reference/computedPropertyNames44_ES5.js
index 03b75f9e85d..d14760e62ee 100644
--- a/tests/baselines/reference/computedPropertyNames44_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames44_ES5.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/computedPropertyNames45_ES5.js b/tests/baselines/reference/computedPropertyNames45_ES5.js
index 35e6b1c85f8..2e679967154 100644
--- a/tests/baselines/reference/computedPropertyNames45_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames45_ES5.js
@@ -17,7 +17,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/conditionalOperatorWithIdenticalBCT.js b/tests/baselines/reference/conditionalOperatorWithIdenticalBCT.js
index 85c97190ade..85ac501937c 100644
--- a/tests/baselines/reference/conditionalOperatorWithIdenticalBCT.js
+++ b/tests/baselines/reference/conditionalOperatorWithIdenticalBCT.js
@@ -52,7 +52,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/conditionalOperatorWithoutIdenticalBCT.js b/tests/baselines/reference/conditionalOperatorWithoutIdenticalBCT.js
index dd17f5b1967..fdc638bc9c4 100644
--- a/tests/baselines/reference/conditionalOperatorWithoutIdenticalBCT.js
+++ b/tests/baselines/reference/conditionalOperatorWithoutIdenticalBCT.js
@@ -28,7 +28,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/constantOverloadFunction.js b/tests/baselines/reference/constantOverloadFunction.js
index 54b2686d904..9635e8d6409 100644
--- a/tests/baselines/reference/constantOverloadFunction.js
+++ b/tests/baselines/reference/constantOverloadFunction.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/constantOverloadFunctionNoSubtypeError.js b/tests/baselines/reference/constantOverloadFunctionNoSubtypeError.js
index b60a0714e3e..793bd82101f 100644
--- a/tests/baselines/reference/constantOverloadFunctionNoSubtypeError.js
+++ b/tests/baselines/reference/constantOverloadFunctionNoSubtypeError.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/constraintCheckInGenericBaseTypeReference.js b/tests/baselines/reference/constraintCheckInGenericBaseTypeReference.js
index 19cb064dd37..11a9b2217c8 100644
--- a/tests/baselines/reference/constraintCheckInGenericBaseTypeReference.js
+++ b/tests/baselines/reference/constraintCheckInGenericBaseTypeReference.js
@@ -24,7 +24,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/constructSignatureAssignabilityInInheritance2.js b/tests/baselines/reference/constructSignatureAssignabilityInInheritance2.js
index 0fb1dcc3e54..aeff518a0de 100644
--- a/tests/baselines/reference/constructSignatureAssignabilityInInheritance2.js
+++ b/tests/baselines/reference/constructSignatureAssignabilityInInheritance2.js
@@ -75,7 +75,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/constructSignatureAssignabilityInInheritance3.js b/tests/baselines/reference/constructSignatureAssignabilityInInheritance3.js
index 26207746fb8..1f388f4e901 100644
--- a/tests/baselines/reference/constructSignatureAssignabilityInInheritance3.js
+++ b/tests/baselines/reference/constructSignatureAssignabilityInInheritance3.js
@@ -118,7 +118,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/constructSignatureAssignabilityInInheritance4.js b/tests/baselines/reference/constructSignatureAssignabilityInInheritance4.js
index 5a47d0327a7..064dddbaea4 100644
--- a/tests/baselines/reference/constructSignatureAssignabilityInInheritance4.js
+++ b/tests/baselines/reference/constructSignatureAssignabilityInInheritance4.js
@@ -65,7 +65,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/constructSignatureAssignabilityInInheritance5.js b/tests/baselines/reference/constructSignatureAssignabilityInInheritance5.js
index f946ff88fc1..8c97b222d98 100644
--- a/tests/baselines/reference/constructSignatureAssignabilityInInheritance5.js
+++ b/tests/baselines/reference/constructSignatureAssignabilityInInheritance5.js
@@ -55,7 +55,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/constructSignatureAssignabilityInInheritance6.js b/tests/baselines/reference/constructSignatureAssignabilityInInheritance6.js
index 427fa2f1b55..6bf2dfb8e60 100644
--- a/tests/baselines/reference/constructSignatureAssignabilityInInheritance6.js
+++ b/tests/baselines/reference/constructSignatureAssignabilityInInheritance6.js
@@ -58,7 +58,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/constructorArgs.js b/tests/baselines/reference/constructorArgs.js
index 8384613193e..69468cc37d2 100644
--- a/tests/baselines/reference/constructorArgs.js
+++ b/tests/baselines/reference/constructorArgs.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/constructorFunctionTypeIsAssignableToBaseType.js b/tests/baselines/reference/constructorFunctionTypeIsAssignableToBaseType.js
index f9a54a616a8..9c986128923 100644
--- a/tests/baselines/reference/constructorFunctionTypeIsAssignableToBaseType.js
+++ b/tests/baselines/reference/constructorFunctionTypeIsAssignableToBaseType.js
@@ -24,7 +24,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/constructorFunctionTypeIsAssignableToBaseType2.js b/tests/baselines/reference/constructorFunctionTypeIsAssignableToBaseType2.js
index 542f9621bb8..ac627bc2359 100644
--- a/tests/baselines/reference/constructorFunctionTypeIsAssignableToBaseType2.js
+++ b/tests/baselines/reference/constructorFunctionTypeIsAssignableToBaseType2.js
@@ -38,7 +38,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/constructorHasPrototypeProperty.js b/tests/baselines/reference/constructorHasPrototypeProperty.js
index 739b240847e..9b5fc00896b 100644
--- a/tests/baselines/reference/constructorHasPrototypeProperty.js
+++ b/tests/baselines/reference/constructorHasPrototypeProperty.js
@@ -36,7 +36,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/constructorOverloads2.js b/tests/baselines/reference/constructorOverloads2.js
index 8ee3a8126ce..dc3a4e051c0 100644
--- a/tests/baselines/reference/constructorOverloads2.js
+++ b/tests/baselines/reference/constructorOverloads2.js
@@ -30,7 +30,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/constructorOverloads3.js b/tests/baselines/reference/constructorOverloads3.js
index dc1bdc2fe5f..b958569f536 100644
--- a/tests/baselines/reference/constructorOverloads3.js
+++ b/tests/baselines/reference/constructorOverloads3.js
@@ -27,7 +27,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/constructorWithCapturedSuper.js b/tests/baselines/reference/constructorWithCapturedSuper.js
index 75030bccdf2..e8536c7e5f7 100644
--- a/tests/baselines/reference/constructorWithCapturedSuper.js
+++ b/tests/baselines/reference/constructorWithCapturedSuper.js
@@ -57,7 +57,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/constructorWithIncompleteTypeAnnotation.js b/tests/baselines/reference/constructorWithIncompleteTypeAnnotation.js
index f59e2a2184f..afe23ec1985 100644
--- a/tests/baselines/reference/constructorWithIncompleteTypeAnnotation.js
+++ b/tests/baselines/reference/constructorWithIncompleteTypeAnnotation.js
@@ -284,7 +284,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/contextualTypingArrayOfLambdas.js b/tests/baselines/reference/contextualTypingArrayOfLambdas.js
index 0ded7accd42..4529a63bcf2 100644
--- a/tests/baselines/reference/contextualTypingArrayOfLambdas.js
+++ b/tests/baselines/reference/contextualTypingArrayOfLambdas.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/contextualTypingOfConditionalExpression.js b/tests/baselines/reference/contextualTypingOfConditionalExpression.js
index c00f8ddfb53..8f2c67a3caf 100644
--- a/tests/baselines/reference/contextualTypingOfConditionalExpression.js
+++ b/tests/baselines/reference/contextualTypingOfConditionalExpression.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/contextualTypingOfConditionalExpression2.js b/tests/baselines/reference/contextualTypingOfConditionalExpression2.js
index 82f204bae6b..2d40d6b59ea 100644
--- a/tests/baselines/reference/contextualTypingOfConditionalExpression2.js
+++ b/tests/baselines/reference/contextualTypingOfConditionalExpression2.js
@@ -17,7 +17,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/controlFlowSuperPropertyAccess.js b/tests/baselines/reference/controlFlowSuperPropertyAccess.js
index 5c33f22f877..cf07d70c998 100644
--- a/tests/baselines/reference/controlFlowSuperPropertyAccess.js
+++ b/tests/baselines/reference/controlFlowSuperPropertyAccess.js
@@ -14,7 +14,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/crashInsourcePropertyIsRelatableToTargetProperty.js b/tests/baselines/reference/crashInsourcePropertyIsRelatableToTargetProperty.js
index 5ee99967e15..7c1c839e8b9 100644
--- a/tests/baselines/reference/crashInsourcePropertyIsRelatableToTargetProperty.js
+++ b/tests/baselines/reference/crashInsourcePropertyIsRelatableToTargetProperty.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/declFileClassExtendsNull.js b/tests/baselines/reference/declFileClassExtendsNull.js
index daf54d47ade..44a23615581 100644
--- a/tests/baselines/reference/declFileClassExtendsNull.js
+++ b/tests/baselines/reference/declFileClassExtendsNull.js
@@ -7,7 +7,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/declFileForFunctionTypeAsTypeParameter.js b/tests/baselines/reference/declFileForFunctionTypeAsTypeParameter.js
index 5b55aeca977..132aa585814 100644
--- a/tests/baselines/reference/declFileForFunctionTypeAsTypeParameter.js
+++ b/tests/baselines/reference/declFileForFunctionTypeAsTypeParameter.js
@@ -13,7 +13,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/declFileGenericClassWithGenericExtendedClass.js b/tests/baselines/reference/declFileGenericClassWithGenericExtendedClass.js
index 0116eccdeec..97055d908b9 100644
--- a/tests/baselines/reference/declFileGenericClassWithGenericExtendedClass.js
+++ b/tests/baselines/reference/declFileGenericClassWithGenericExtendedClass.js
@@ -17,7 +17,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/declFileGenericType.js b/tests/baselines/reference/declFileGenericType.js
index c95fc26d318..1258362f609 100644
--- a/tests/baselines/reference/declFileGenericType.js
+++ b/tests/baselines/reference/declFileGenericType.js
@@ -45,7 +45,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/declFileGenericType2.js b/tests/baselines/reference/declFileGenericType2.js
index 9b08417109f..b32203659f3 100644
--- a/tests/baselines/reference/declFileGenericType2.js
+++ b/tests/baselines/reference/declFileGenericType2.js
@@ -46,7 +46,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/declFileWithClassNameConflictingWithClassReferredByExtendsClause.js b/tests/baselines/reference/declFileWithClassNameConflictingWithClassReferredByExtendsClause.js
index 1a923471206..80cec970d8c 100644
--- a/tests/baselines/reference/declFileWithClassNameConflictingWithClassReferredByExtendsClause.js
+++ b/tests/baselines/reference/declFileWithClassNameConflictingWithClassReferredByExtendsClause.js
@@ -24,7 +24,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/declFileWithExtendsClauseThatHasItsContainerNameConflict.js b/tests/baselines/reference/declFileWithExtendsClauseThatHasItsContainerNameConflict.js
index 1072b7fe1e5..a05be0a69c7 100644
--- a/tests/baselines/reference/declFileWithExtendsClauseThatHasItsContainerNameConflict.js
+++ b/tests/baselines/reference/declFileWithExtendsClauseThatHasItsContainerNameConflict.js
@@ -22,7 +22,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/declarationEmitExpressionInExtends.js b/tests/baselines/reference/declarationEmitExpressionInExtends.js
index d3e82411976..258423592b8 100644
--- a/tests/baselines/reference/declarationEmitExpressionInExtends.js
+++ b/tests/baselines/reference/declarationEmitExpressionInExtends.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/declarationEmitExpressionInExtends2.js b/tests/baselines/reference/declarationEmitExpressionInExtends2.js
index 54ced8d3baf..46dd85b9890 100644
--- a/tests/baselines/reference/declarationEmitExpressionInExtends2.js
+++ b/tests/baselines/reference/declarationEmitExpressionInExtends2.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/declarationEmitExpressionInExtends3.js b/tests/baselines/reference/declarationEmitExpressionInExtends3.js
index 0d8effacaa9..7533a054fca 100644
--- a/tests/baselines/reference/declarationEmitExpressionInExtends3.js
+++ b/tests/baselines/reference/declarationEmitExpressionInExtends3.js
@@ -48,7 +48,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/declarationEmitExpressionInExtends4.js b/tests/baselines/reference/declarationEmitExpressionInExtends4.js
index 27c7b4350ca..b04d32b0522 100644
--- a/tests/baselines/reference/declarationEmitExpressionInExtends4.js
+++ b/tests/baselines/reference/declarationEmitExpressionInExtends4.js
@@ -21,7 +21,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/declarationEmitExpressionInExtends5.js b/tests/baselines/reference/declarationEmitExpressionInExtends5.js
index f19d0c8862c..41917304e3c 100644
--- a/tests/baselines/reference/declarationEmitExpressionInExtends5.js
+++ b/tests/baselines/reference/declarationEmitExpressionInExtends5.js
@@ -25,7 +25,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/declarationEmitForDefaultExportClassExtendingExpression01.js b/tests/baselines/reference/declarationEmitForDefaultExportClassExtendingExpression01.js
index 4d0006d52e6..ece9d72fc67 100644
--- a/tests/baselines/reference/declarationEmitForDefaultExportClassExtendingExpression01.js
+++ b/tests/baselines/reference/declarationEmitForDefaultExportClassExtendingExpression01.js
@@ -26,7 +26,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/declarationEmitLocalClassDeclarationMixin.js b/tests/baselines/reference/declarationEmitLocalClassDeclarationMixin.js
index 527c6660735..323cb2b21c9 100644
--- a/tests/baselines/reference/declarationEmitLocalClassDeclarationMixin.js
+++ b/tests/baselines/reference/declarationEmitLocalClassDeclarationMixin.js
@@ -36,7 +36,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/declarationEmitNameConflicts3.js b/tests/baselines/reference/declarationEmitNameConflicts3.js
index 6098f5c93e5..73121ebb65c 100644
--- a/tests/baselines/reference/declarationEmitNameConflicts3.js
+++ b/tests/baselines/reference/declarationEmitNameConflicts3.js
@@ -31,7 +31,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/declarationEmitPrivateNameCausesError.js b/tests/baselines/reference/declarationEmitPrivateNameCausesError.js
index 73a1d9e5253..af6306d749c 100644
--- a/tests/baselines/reference/declarationEmitPrivateNameCausesError.js
+++ b/tests/baselines/reference/declarationEmitPrivateNameCausesError.js
@@ -14,7 +14,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/declarationEmitPrivateSymbolCausesVarDeclarationEmit2.js b/tests/baselines/reference/declarationEmitPrivateSymbolCausesVarDeclarationEmit2.js
index 970590c136b..95065749067 100644
--- a/tests/baselines/reference/declarationEmitPrivateSymbolCausesVarDeclarationEmit2.js
+++ b/tests/baselines/reference/declarationEmitPrivateSymbolCausesVarDeclarationEmit2.js
@@ -42,7 +42,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/declarationEmitProtectedMembers.js b/tests/baselines/reference/declarationEmitProtectedMembers.js
index e0a2b40ffd5..3cfd31e5ded 100644
--- a/tests/baselines/reference/declarationEmitProtectedMembers.js
+++ b/tests/baselines/reference/declarationEmitProtectedMembers.js
@@ -54,7 +54,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/declarationEmitReexportedSymlinkReference.js b/tests/baselines/reference/declarationEmitReexportedSymlinkReference.js
index 670c6ab7184..3a0b25773df 100644
--- a/tests/baselines/reference/declarationEmitReexportedSymlinkReference.js
+++ b/tests/baselines/reference/declarationEmitReexportedSymlinkReference.js
@@ -58,7 +58,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 Object.defineProperty(exports, "__esModule", { value: true });
 __exportStar(require("./keys"), exports);
diff --git a/tests/baselines/reference/declarationEmitReexportedSymlinkReference2.js b/tests/baselines/reference/declarationEmitReexportedSymlinkReference2.js
index 9a89697f98e..e43528ab4c2 100644
--- a/tests/baselines/reference/declarationEmitReexportedSymlinkReference2.js
+++ b/tests/baselines/reference/declarationEmitReexportedSymlinkReference2.js
@@ -61,7 +61,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 Object.defineProperty(exports, "__esModule", { value: true });
 __exportStar(require("./keys"), exports);
diff --git a/tests/baselines/reference/declarationEmitReexportedSymlinkReference3.js b/tests/baselines/reference/declarationEmitReexportedSymlinkReference3.js
index d03363e3882..b1ecb406985 100644
--- a/tests/baselines/reference/declarationEmitReexportedSymlinkReference3.js
+++ b/tests/baselines/reference/declarationEmitReexportedSymlinkReference3.js
@@ -58,7 +58,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 Object.defineProperty(exports, "__esModule", { value: true });
 __exportStar(require("./keys"), exports);
diff --git a/tests/baselines/reference/declarationEmitThisPredicates01.js b/tests/baselines/reference/declarationEmitThisPredicates01.js
index 5663a24d415..d49b24dd2f4 100644
--- a/tests/baselines/reference/declarationEmitThisPredicates01.js
+++ b/tests/baselines/reference/declarationEmitThisPredicates01.js
@@ -14,7 +14,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/declarationEmitThisPredicatesWithPrivateName01.js b/tests/baselines/reference/declarationEmitThisPredicatesWithPrivateName01.js
index 062c1baba8c..f3876877c6a 100644
--- a/tests/baselines/reference/declarationEmitThisPredicatesWithPrivateName01.js
+++ b/tests/baselines/reference/declarationEmitThisPredicatesWithPrivateName01.js
@@ -14,7 +14,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/declarationNoDanglingGenerics.js b/tests/baselines/reference/declarationNoDanglingGenerics.js
index e64cca94ef7..8597e27f9a1 100644
--- a/tests/baselines/reference/declarationNoDanglingGenerics.js
+++ b/tests/baselines/reference/declarationNoDanglingGenerics.js
@@ -38,7 +38,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/declarationsForFileShadowingGlobalNoError.js b/tests/baselines/reference/declarationsForFileShadowingGlobalNoError.js
index ed972a1312c..a7cd0549734 100644
--- a/tests/baselines/reference/declarationsForFileShadowingGlobalNoError.js
+++ b/tests/baselines/reference/declarationsForFileShadowingGlobalNoError.js
@@ -28,7 +28,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/declareDottedExtend.js b/tests/baselines/reference/declareDottedExtend.js
index 4adc5fb3292..dd4b295b347 100644
--- a/tests/baselines/reference/declareDottedExtend.js
+++ b/tests/baselines/reference/declareDottedExtend.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/decoratorOnClass9.js b/tests/baselines/reference/decoratorOnClass9.js
index 71c56d00ee6..87f1fd3bdc9 100644
--- a/tests/baselines/reference/decoratorOnClass9.js
+++ b/tests/baselines/reference/decoratorOnClass9.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/decoratorOnClassConstructor2.js b/tests/baselines/reference/decoratorOnClassConstructor2.js
index d6192604c06..3da9d34a6f4 100644
--- a/tests/baselines/reference/decoratorOnClassConstructor2.js
+++ b/tests/baselines/reference/decoratorOnClassConstructor2.js
@@ -30,7 +30,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/decoratorOnClassConstructor3.js b/tests/baselines/reference/decoratorOnClassConstructor3.js
index 065cf5ce76b..dc0e5441651 100644
--- a/tests/baselines/reference/decoratorOnClassConstructor3.js
+++ b/tests/baselines/reference/decoratorOnClassConstructor3.js
@@ -32,7 +32,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/decoratorOnClassConstructor4.js b/tests/baselines/reference/decoratorOnClassConstructor4.js
index eddda104575..03465dd8ff8 100644
--- a/tests/baselines/reference/decoratorOnClassConstructor4.js
+++ b/tests/baselines/reference/decoratorOnClassConstructor4.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/decoratorOnClassMethod12.js b/tests/baselines/reference/decoratorOnClassMethod12.js
index 345f4c9aeee..4b430b15cc2 100644
--- a/tests/baselines/reference/decoratorOnClassMethod12.js
+++ b/tests/baselines/reference/decoratorOnClassMethod12.js
@@ -14,7 +14,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/defaultPropsEmptyCurlyBecomesAnyForJs.js b/tests/baselines/reference/defaultPropsEmptyCurlyBecomesAnyForJs.js
index 825083b1561..4fa91aede4e 100644
--- a/tests/baselines/reference/defaultPropsEmptyCurlyBecomesAnyForJs.js
+++ b/tests/baselines/reference/defaultPropsEmptyCurlyBecomesAnyForJs.js
@@ -31,7 +31,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
@@ -56,7 +56,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/defineProperty(target=es5).js b/tests/baselines/reference/defineProperty(target=es5).js
index c7ef0c6d39c..72b1a1df4a4 100644
--- a/tests/baselines/reference/defineProperty(target=es5).js
+++ b/tests/baselines/reference/defineProperty(target=es5).js
@@ -29,7 +29,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.js b/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.js
index 7e8ee59f1a9..0597a4eac2c 100644
--- a/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.js
+++ b/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.js
@@ -38,7 +38,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.sourcemap.txt b/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.sourcemap.txt
index 56a565db980..55635afb425 100644
--- a/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.sourcemap.txt
+++ b/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.sourcemap.txt
@@ -12,7 +12,7 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
 >>>    var extendStatics = function (d, b) {
 >>>        extendStatics = Object.setPrototypeOf ||
 >>>            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
->>>            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+>>>            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
 >>>        return extendStatics(d, b);
 >>>    };
 >>>    return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassConstructorWithoutSuperCall.js b/tests/baselines/reference/derivedClassConstructorWithoutSuperCall.js
index 32edf0885e9..11af2612027 100644
--- a/tests/baselines/reference/derivedClassConstructorWithoutSuperCall.js
+++ b/tests/baselines/reference/derivedClassConstructorWithoutSuperCall.js
@@ -38,7 +38,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassFunctionOverridesBaseClassAccessor.js b/tests/baselines/reference/derivedClassFunctionOverridesBaseClassAccessor.js
index 0df523b7531..f2a04d62e82 100644
--- a/tests/baselines/reference/derivedClassFunctionOverridesBaseClassAccessor.js
+++ b/tests/baselines/reference/derivedClassFunctionOverridesBaseClassAccessor.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassIncludesInheritedMembers.js b/tests/baselines/reference/derivedClassIncludesInheritedMembers.js
index f80e3c38b89..0b2e290545b 100644
--- a/tests/baselines/reference/derivedClassIncludesInheritedMembers.js
+++ b/tests/baselines/reference/derivedClassIncludesInheritedMembers.js
@@ -45,7 +45,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassOverridesIndexersWithAssignmentCompatibility.js b/tests/baselines/reference/derivedClassOverridesIndexersWithAssignmentCompatibility.js
index f5019942482..f6e791e800b 100644
--- a/tests/baselines/reference/derivedClassOverridesIndexersWithAssignmentCompatibility.js
+++ b/tests/baselines/reference/derivedClassOverridesIndexersWithAssignmentCompatibility.js
@@ -22,7 +22,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassOverridesPrivateFunction1.js b/tests/baselines/reference/derivedClassOverridesPrivateFunction1.js
index b84daa18b66..10623687a09 100644
--- a/tests/baselines/reference/derivedClassOverridesPrivateFunction1.js
+++ b/tests/baselines/reference/derivedClassOverridesPrivateFunction1.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassOverridesPrivates.js b/tests/baselines/reference/derivedClassOverridesPrivates.js
index d313a5b5647..5eda2798247 100644
--- a/tests/baselines/reference/derivedClassOverridesPrivates.js
+++ b/tests/baselines/reference/derivedClassOverridesPrivates.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassOverridesProtectedMembers.js b/tests/baselines/reference/derivedClassOverridesProtectedMembers.js
index f8f20fb6c00..57c651e02ca 100644
--- a/tests/baselines/reference/derivedClassOverridesProtectedMembers.js
+++ b/tests/baselines/reference/derivedClassOverridesProtectedMembers.js
@@ -40,7 +40,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassOverridesProtectedMembers2.js b/tests/baselines/reference/derivedClassOverridesProtectedMembers2.js
index 2b0e072f865..3c52b9f23c1 100644
--- a/tests/baselines/reference/derivedClassOverridesProtectedMembers2.js
+++ b/tests/baselines/reference/derivedClassOverridesProtectedMembers2.js
@@ -68,7 +68,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassOverridesProtectedMembers3.js b/tests/baselines/reference/derivedClassOverridesProtectedMembers3.js
index 568e7ecd32f..30223b38e37 100644
--- a/tests/baselines/reference/derivedClassOverridesProtectedMembers3.js
+++ b/tests/baselines/reference/derivedClassOverridesProtectedMembers3.js
@@ -75,7 +75,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassOverridesProtectedMembers4.js b/tests/baselines/reference/derivedClassOverridesProtectedMembers4.js
index 099c450f692..23dce748e06 100644
--- a/tests/baselines/reference/derivedClassOverridesProtectedMembers4.js
+++ b/tests/baselines/reference/derivedClassOverridesProtectedMembers4.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassOverridesPublicMembers.js b/tests/baselines/reference/derivedClassOverridesPublicMembers.js
index 6e6b27452cd..4dbf6f73f75 100644
--- a/tests/baselines/reference/derivedClassOverridesPublicMembers.js
+++ b/tests/baselines/reference/derivedClassOverridesPublicMembers.js
@@ -67,7 +67,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassOverridesWithoutSubtype.js b/tests/baselines/reference/derivedClassOverridesWithoutSubtype.js
index e526f7d8d9b..ae49f5853b2 100644
--- a/tests/baselines/reference/derivedClassOverridesWithoutSubtype.js
+++ b/tests/baselines/reference/derivedClassOverridesWithoutSubtype.js
@@ -28,7 +28,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassParameterProperties.js b/tests/baselines/reference/derivedClassParameterProperties.js
index a3213b0ebbd..81a74f727ee 100644
--- a/tests/baselines/reference/derivedClassParameterProperties.js
+++ b/tests/baselines/reference/derivedClassParameterProperties.js
@@ -100,7 +100,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassSuperCallsInNonConstructorMembers.js b/tests/baselines/reference/derivedClassSuperCallsInNonConstructorMembers.js
index b21d847aa57..49594dd68ec 100644
--- a/tests/baselines/reference/derivedClassSuperCallsInNonConstructorMembers.js
+++ b/tests/baselines/reference/derivedClassSuperCallsInNonConstructorMembers.js
@@ -37,7 +37,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassSuperCallsWithThisArg.js b/tests/baselines/reference/derivedClassSuperCallsWithThisArg.js
index 93599cfbeea..60dbc1895dd 100644
--- a/tests/baselines/reference/derivedClassSuperCallsWithThisArg.js
+++ b/tests/baselines/reference/derivedClassSuperCallsWithThisArg.js
@@ -33,7 +33,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassTransitivity.js b/tests/baselines/reference/derivedClassTransitivity.js
index 3a5641b5feb..e237985dd2c 100644
--- a/tests/baselines/reference/derivedClassTransitivity.js
+++ b/tests/baselines/reference/derivedClassTransitivity.js
@@ -26,7 +26,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassTransitivity2.js b/tests/baselines/reference/derivedClassTransitivity2.js
index fcd9a6eb6dc..d71adae47e1 100644
--- a/tests/baselines/reference/derivedClassTransitivity2.js
+++ b/tests/baselines/reference/derivedClassTransitivity2.js
@@ -26,7 +26,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassTransitivity3.js b/tests/baselines/reference/derivedClassTransitivity3.js
index b0b8481b224..6c8fce22d0e 100644
--- a/tests/baselines/reference/derivedClassTransitivity3.js
+++ b/tests/baselines/reference/derivedClassTransitivity3.js
@@ -26,7 +26,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassTransitivity4.js b/tests/baselines/reference/derivedClassTransitivity4.js
index b5785a3cb4f..c5ab456b14f 100644
--- a/tests/baselines/reference/derivedClassTransitivity4.js
+++ b/tests/baselines/reference/derivedClassTransitivity4.js
@@ -26,7 +26,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassWithAny.js b/tests/baselines/reference/derivedClassWithAny.js
index d5f2e630933..096e7fd9ffc 100644
--- a/tests/baselines/reference/derivedClassWithAny.js
+++ b/tests/baselines/reference/derivedClassWithAny.js
@@ -64,7 +64,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassWithPrivateInstanceShadowingProtectedInstance.js b/tests/baselines/reference/derivedClassWithPrivateInstanceShadowingProtectedInstance.js
index 710a400dc7b..acbda1db9db 100644
--- a/tests/baselines/reference/derivedClassWithPrivateInstanceShadowingProtectedInstance.js
+++ b/tests/baselines/reference/derivedClassWithPrivateInstanceShadowingProtectedInstance.js
@@ -26,7 +26,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassWithPrivateInstanceShadowingPublicInstance.js b/tests/baselines/reference/derivedClassWithPrivateInstanceShadowingPublicInstance.js
index d16dd43a109..9d7feeb802a 100644
--- a/tests/baselines/reference/derivedClassWithPrivateInstanceShadowingPublicInstance.js
+++ b/tests/baselines/reference/derivedClassWithPrivateInstanceShadowingPublicInstance.js
@@ -37,7 +37,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassWithPrivateStaticShadowingProtectedStatic.js b/tests/baselines/reference/derivedClassWithPrivateStaticShadowingProtectedStatic.js
index c00b52f5d86..039246d8916 100644
--- a/tests/baselines/reference/derivedClassWithPrivateStaticShadowingProtectedStatic.js
+++ b/tests/baselines/reference/derivedClassWithPrivateStaticShadowingProtectedStatic.js
@@ -25,7 +25,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassWithPrivateStaticShadowingPublicStatic.js b/tests/baselines/reference/derivedClassWithPrivateStaticShadowingPublicStatic.js
index e6fb931ed94..0194c002d72 100644
--- a/tests/baselines/reference/derivedClassWithPrivateStaticShadowingPublicStatic.js
+++ b/tests/baselines/reference/derivedClassWithPrivateStaticShadowingPublicStatic.js
@@ -38,7 +38,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassWithoutExplicitConstructor.js b/tests/baselines/reference/derivedClassWithoutExplicitConstructor.js
index 0a33ed849d0..ee8e936d1ce 100644
--- a/tests/baselines/reference/derivedClassWithoutExplicitConstructor.js
+++ b/tests/baselines/reference/derivedClassWithoutExplicitConstructor.js
@@ -30,7 +30,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassWithoutExplicitConstructor2.js b/tests/baselines/reference/derivedClassWithoutExplicitConstructor2.js
index b74a76f85a2..5946f331aaf 100644
--- a/tests/baselines/reference/derivedClassWithoutExplicitConstructor2.js
+++ b/tests/baselines/reference/derivedClassWithoutExplicitConstructor2.js
@@ -38,7 +38,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClassWithoutExplicitConstructor3.js b/tests/baselines/reference/derivedClassWithoutExplicitConstructor3.js
index efc9e5655ec..6618e723e1d 100644
--- a/tests/baselines/reference/derivedClassWithoutExplicitConstructor3.js
+++ b/tests/baselines/reference/derivedClassWithoutExplicitConstructor3.js
@@ -52,7 +52,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedClasses.js b/tests/baselines/reference/derivedClasses.js
index 74de644d40c..01b6e820e1f 100644
--- a/tests/baselines/reference/derivedClasses.js
+++ b/tests/baselines/reference/derivedClasses.js
@@ -35,7 +35,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedGenericClassWithAny.js b/tests/baselines/reference/derivedGenericClassWithAny.js
index e5ba39f15a1..b2dffc47e10 100644
--- a/tests/baselines/reference/derivedGenericClassWithAny.js
+++ b/tests/baselines/reference/derivedGenericClassWithAny.js
@@ -47,7 +47,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedTypeAccessesHiddenBaseCallViaSuperPropertyAccess.js b/tests/baselines/reference/derivedTypeAccessesHiddenBaseCallViaSuperPropertyAccess.js
index 3073a8182d0..53e6ecdff50 100644
--- a/tests/baselines/reference/derivedTypeAccessesHiddenBaseCallViaSuperPropertyAccess.js
+++ b/tests/baselines/reference/derivedTypeAccessesHiddenBaseCallViaSuperPropertyAccess.js
@@ -22,7 +22,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedTypeDoesNotRequireExtendsClause.js b/tests/baselines/reference/derivedTypeDoesNotRequireExtendsClause.js
index 9fee874620f..299159711fa 100644
--- a/tests/baselines/reference/derivedTypeDoesNotRequireExtendsClause.js
+++ b/tests/baselines/reference/derivedTypeDoesNotRequireExtendsClause.js
@@ -25,7 +25,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/derivedUninitializedPropertyDeclaration.js b/tests/baselines/reference/derivedUninitializedPropertyDeclaration.js
index a1536dafca4..c1ba6f6aa64 100644
--- a/tests/baselines/reference/derivedUninitializedPropertyDeclaration.js
+++ b/tests/baselines/reference/derivedUninitializedPropertyDeclaration.js
@@ -88,7 +88,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/destructuringParameterDeclaration5.js b/tests/baselines/reference/destructuringParameterDeclaration5.js
index 6ceabf38507..a9c5597a3e5 100644
--- a/tests/baselines/reference/destructuringParameterDeclaration5.js
+++ b/tests/baselines/reference/destructuringParameterDeclaration5.js
@@ -56,7 +56,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/doubleMixinConditionalTypeBaseClassWorks.js b/tests/baselines/reference/doubleMixinConditionalTypeBaseClassWorks.js
index fa76dab7464..de28dcc9dd8 100644
--- a/tests/baselines/reference/doubleMixinConditionalTypeBaseClassWorks.js
+++ b/tests/baselines/reference/doubleMixinConditionalTypeBaseClassWorks.js
@@ -13,7 +13,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/doubleUnderscoreExportStarConflict.js b/tests/baselines/reference/doubleUnderscoreExportStarConflict.js
index fbabacfed7d..55097af4caa 100644
--- a/tests/baselines/reference/doubleUnderscoreExportStarConflict.js
+++ b/tests/baselines/reference/doubleUnderscoreExportStarConflict.js
@@ -31,7 +31,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./b"), exports);
diff --git a/tests/baselines/reference/emitBundleWithPrologueDirectives1.js b/tests/baselines/reference/emitBundleWithPrologueDirectives1.js
index d8d60aa33c6..249abbec8a8 100644
--- a/tests/baselines/reference/emitBundleWithPrologueDirectives1.js
+++ b/tests/baselines/reference/emitBundleWithPrologueDirectives1.js
@@ -10,7 +10,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/emitBundleWithShebang1.js b/tests/baselines/reference/emitBundleWithShebang1.js
index 0e19e997c6c..f9bcb19583b 100644
--- a/tests/baselines/reference/emitBundleWithShebang1.js
+++ b/tests/baselines/reference/emitBundleWithShebang1.js
@@ -9,7 +9,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/emitBundleWithShebang2.js b/tests/baselines/reference/emitBundleWithShebang2.js
index ac0a54bd4d2..bab09ed8f36 100644
--- a/tests/baselines/reference/emitBundleWithShebang2.js
+++ b/tests/baselines/reference/emitBundleWithShebang2.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/emitBundleWithShebangAndPrologueDirectives1.js b/tests/baselines/reference/emitBundleWithShebangAndPrologueDirectives1.js
index 99590f80d01..771dee4607b 100644
--- a/tests/baselines/reference/emitBundleWithShebangAndPrologueDirectives1.js
+++ b/tests/baselines/reference/emitBundleWithShebangAndPrologueDirectives1.js
@@ -11,7 +11,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/emitBundleWithShebangAndPrologueDirectives2.js b/tests/baselines/reference/emitBundleWithShebangAndPrologueDirectives2.js
index 9aac22c9c07..07f9743a996 100644
--- a/tests/baselines/reference/emitBundleWithShebangAndPrologueDirectives2.js
+++ b/tests/baselines/reference/emitBundleWithShebangAndPrologueDirectives2.js
@@ -21,7 +21,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/emitClassDeclarationWithPropertyAccessInHeritageClause1.js b/tests/baselines/reference/emitClassDeclarationWithPropertyAccessInHeritageClause1.js
index 7d84518a75d..0ba98d427f2 100644
--- a/tests/baselines/reference/emitClassDeclarationWithPropertyAccessInHeritageClause1.js
+++ b/tests/baselines/reference/emitClassDeclarationWithPropertyAccessInHeritageClause1.js
@@ -10,7 +10,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/emitClassExpressionInDeclarationFile.js b/tests/baselines/reference/emitClassExpressionInDeclarationFile.js
index 1ea94bf1edd..83e7eb3e5a6 100644
--- a/tests/baselines/reference/emitClassExpressionInDeclarationFile.js
+++ b/tests/baselines/reference/emitClassExpressionInDeclarationFile.js
@@ -36,7 +36,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/emitClassExpressionInDeclarationFile2.js b/tests/baselines/reference/emitClassExpressionInDeclarationFile2.js
index fbeae9f8a4f..505be2abee9 100644
--- a/tests/baselines/reference/emitClassExpressionInDeclarationFile2.js
+++ b/tests/baselines/reference/emitClassExpressionInDeclarationFile2.js
@@ -35,7 +35,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/emitSuperCallBeforeEmitParameterPropertyDeclaration1.js b/tests/baselines/reference/emitSuperCallBeforeEmitParameterPropertyDeclaration1.js
index 46979a25b15..6d6a6460436 100644
--- a/tests/baselines/reference/emitSuperCallBeforeEmitParameterPropertyDeclaration1.js
+++ b/tests/baselines/reference/emitSuperCallBeforeEmitParameterPropertyDeclaration1.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/emitSuperCallBeforeEmitPropertyDeclaration1.js b/tests/baselines/reference/emitSuperCallBeforeEmitPropertyDeclaration1.js
index 09985c47478..3632612fdb0 100644
--- a/tests/baselines/reference/emitSuperCallBeforeEmitPropertyDeclaration1.js
+++ b/tests/baselines/reference/emitSuperCallBeforeEmitPropertyDeclaration1.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/emitSuperCallBeforeEmitPropertyDeclarationAndParameterPropertyDeclaration1.js b/tests/baselines/reference/emitSuperCallBeforeEmitPropertyDeclarationAndParameterPropertyDeclaration1.js
index f94699c64a4..20eb259a72e 100644
--- a/tests/baselines/reference/emitSuperCallBeforeEmitPropertyDeclarationAndParameterPropertyDeclaration1.js
+++ b/tests/baselines/reference/emitSuperCallBeforeEmitPropertyDeclarationAndParameterPropertyDeclaration1.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/emitThisInSuperMethodCall.js b/tests/baselines/reference/emitThisInSuperMethodCall.js
index 399cd122285..39b034dd7ee 100644
--- a/tests/baselines/reference/emitThisInSuperMethodCall.js
+++ b/tests/baselines/reference/emitThisInSuperMethodCall.js
@@ -32,7 +32,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/emitter.asyncGenerators.classMethods.es5.js b/tests/baselines/reference/emitter.asyncGenerators.classMethods.es5.js
index fa9c9f3a515..fa539ab546d 100644
--- a/tests/baselines/reference/emitter.asyncGenerators.classMethods.es5.js
+++ b/tests/baselines/reference/emitter.asyncGenerators.classMethods.es5.js
@@ -575,7 +575,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/emptyModuleName.js b/tests/baselines/reference/emptyModuleName.js
index eaefba8304f..2c0a81c3709 100644
--- a/tests/baselines/reference/emptyModuleName.js
+++ b/tests/baselines/reference/emptyModuleName.js
@@ -9,7 +9,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/errorForwardReferenceForwadingConstructor.js b/tests/baselines/reference/errorForwardReferenceForwadingConstructor.js
index 36abfb4d741..d30c2f53aaf 100644
--- a/tests/baselines/reference/errorForwardReferenceForwadingConstructor.js
+++ b/tests/baselines/reference/errorForwardReferenceForwadingConstructor.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/errorSuperCalls.js b/tests/baselines/reference/errorSuperCalls.js
index 11cda4b76f7..ced2ca75671 100644
--- a/tests/baselines/reference/errorSuperCalls.js
+++ b/tests/baselines/reference/errorSuperCalls.js
@@ -79,7 +79,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/errorSuperPropertyAccess.js b/tests/baselines/reference/errorSuperPropertyAccess.js
index f393fc37668..edb26063892 100644
--- a/tests/baselines/reference/errorSuperPropertyAccess.js
+++ b/tests/baselines/reference/errorSuperPropertyAccess.js
@@ -133,7 +133,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/errorsInGenericTypeReference.js b/tests/baselines/reference/errorsInGenericTypeReference.js
index 409c2649449..18545e5ed1f 100644
--- a/tests/baselines/reference/errorsInGenericTypeReference.js
+++ b/tests/baselines/reference/errorsInGenericTypeReference.js
@@ -76,7 +76,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/es6ClassSuperCodegenBug.js b/tests/baselines/reference/es6ClassSuperCodegenBug.js
index 634223c8005..cf7cdafbeb3 100644
--- a/tests/baselines/reference/es6ClassSuperCodegenBug.js
+++ b/tests/baselines/reference/es6ClassSuperCodegenBug.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/es6ClassTest.js b/tests/baselines/reference/es6ClassTest.js
index c9384e6b48c..479e6bc28a2 100644
--- a/tests/baselines/reference/es6ClassTest.js
+++ b/tests/baselines/reference/es6ClassTest.js
@@ -89,7 +89,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/es6ClassTest2.js b/tests/baselines/reference/es6ClassTest2.js
index 2766bbcb7d1..aeb6e7e88ae 100644
--- a/tests/baselines/reference/es6ClassTest2.js
+++ b/tests/baselines/reference/es6ClassTest2.js
@@ -163,7 +163,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/es6ClassTest7.js b/tests/baselines/reference/es6ClassTest7.js
index 0884a7ed382..99a724f9b9d 100644
--- a/tests/baselines/reference/es6ClassTest7.js
+++ b/tests/baselines/reference/es6ClassTest7.js
@@ -13,7 +13,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/es6ExportAllInEs5.js b/tests/baselines/reference/es6ExportAllInEs5.js
index 2f356a89233..6eed8c233ac 100644
--- a/tests/baselines/reference/es6ExportAllInEs5.js
+++ b/tests/baselines/reference/es6ExportAllInEs5.js
@@ -39,7 +39,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 Object.defineProperty(exports, "__esModule", { value: true });
 __exportStar(require("./server"), exports);
diff --git a/tests/baselines/reference/es6ExportEqualsInterop.js b/tests/baselines/reference/es6ExportEqualsInterop.js
index 297e053d4b6..15b4abff25a 100644
--- a/tests/baselines/reference/es6ExportEqualsInterop.js
+++ b/tests/baselines/reference/es6ExportEqualsInterop.js
@@ -217,7 +217,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 var z2 = require("variable");
diff --git a/tests/baselines/reference/esModuleInterop.js b/tests/baselines/reference/esModuleInterop.js
index 20c009e80a4..b17aeebd8e4 100644
--- a/tests/baselines/reference/esModuleInterop.js
+++ b/tests/baselines/reference/esModuleInterop.js
@@ -35,7 +35,7 @@ var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;
     var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    if (mod != null) for (var k in mod) if (Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
     __setModuleDefault(result, mod);
     return result;
 };
diff --git a/tests/baselines/reference/esModuleInteropImportCall.js b/tests/baselines/reference/esModuleInteropImportCall.js
index cb29b51cd43..eacd1523020 100644
--- a/tests/baselines/reference/esModuleInteropImportCall.js
+++ b/tests/baselines/reference/esModuleInteropImportCall.js
@@ -26,7 +26,7 @@ var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;
     var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    if (mod != null) for (var k in mod) if (Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
     __setModuleDefault(result, mod);
     return result;
 };
diff --git a/tests/baselines/reference/esModuleInteropImportNamespace.js b/tests/baselines/reference/esModuleInteropImportNamespace.js
index 8704f95b0a8..62767dd6eae 100644
--- a/tests/baselines/reference/esModuleInteropImportNamespace.js
+++ b/tests/baselines/reference/esModuleInteropImportNamespace.js
@@ -27,7 +27,7 @@ var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;
     var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    if (mod != null) for (var k in mod) if (Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
     __setModuleDefault(result, mod);
     return result;
 };
diff --git a/tests/baselines/reference/esModuleInteropNamedDefaultImports.js b/tests/baselines/reference/esModuleInteropNamedDefaultImports.js
index ccb1be9e273..0b36890fe46 100644
--- a/tests/baselines/reference/esModuleInteropNamedDefaultImports.js
+++ b/tests/baselines/reference/esModuleInteropNamedDefaultImports.js
@@ -44,7 +44,7 @@ var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;
     var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    if (mod != null) for (var k in mod) if (Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
     __setModuleDefault(result, mod);
     return result;
 };
diff --git a/tests/baselines/reference/esModuleInteropPrettyErrorRelatedInformation.js b/tests/baselines/reference/esModuleInteropPrettyErrorRelatedInformation.js
index 556414576d1..412e4e08869 100644
--- a/tests/baselines/reference/esModuleInteropPrettyErrorRelatedInformation.js
+++ b/tests/baselines/reference/esModuleInteropPrettyErrorRelatedInformation.js
@@ -27,7 +27,7 @@ var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;
     var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    if (mod != null) for (var k in mod) if (Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
     __setModuleDefault(result, mod);
     return result;
 };
diff --git a/tests/baselines/reference/esModuleInteropUsesExportStarWhenDefaultPlusNames.js b/tests/baselines/reference/esModuleInteropUsesExportStarWhenDefaultPlusNames.js
index 1e20e8e208c..0eebf69bd00 100644
--- a/tests/baselines/reference/esModuleInteropUsesExportStarWhenDefaultPlusNames.js
+++ b/tests/baselines/reference/esModuleInteropUsesExportStarWhenDefaultPlusNames.js
@@ -20,7 +20,7 @@ var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;
     var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    if (mod != null) for (var k in mod) if (Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
     __setModuleDefault(result, mod);
     return result;
 };
diff --git a/tests/baselines/reference/esModuleInteropWithExportStar(target=es3).js b/tests/baselines/reference/esModuleInteropWithExportStar(target=es3).js
index ec8b93e9f9d..2b9e5225530 100644
--- a/tests/baselines/reference/esModuleInteropWithExportStar(target=es3).js
+++ b/tests/baselines/reference/esModuleInteropWithExportStar(target=es3).js
@@ -29,12 +29,12 @@ var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;
     var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    if (mod != null) for (var k in mod) if (Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
     __setModuleDefault(result, mod);
     return result;
 };
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 var fs = __importStar(require("./fs"));
diff --git a/tests/baselines/reference/esModuleInteropWithExportStar(target=es5).js b/tests/baselines/reference/esModuleInteropWithExportStar(target=es5).js
index 77459782f1d..dbb4e01ea37 100644
--- a/tests/baselines/reference/esModuleInteropWithExportStar(target=es5).js
+++ b/tests/baselines/reference/esModuleInteropWithExportStar(target=es5).js
@@ -29,12 +29,12 @@ var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;
     var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    if (mod != null) for (var k in mod) if (Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
     __setModuleDefault(result, mod);
     return result;
 };
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 Object.defineProperty(exports, "__esModule", { value: true });
 var fs = __importStar(require("./fs"));
diff --git a/tests/baselines/reference/esModuleIntersectionCrash.js b/tests/baselines/reference/esModuleIntersectionCrash.js
index 5f1b5b2e104..a19f510eb2d 100644
--- a/tests/baselines/reference/esModuleIntersectionCrash.js
+++ b/tests/baselines/reference/esModuleIntersectionCrash.js
@@ -29,7 +29,7 @@ var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;
     var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    if (mod != null) for (var k in mod) if (Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
     __setModuleDefault(result, mod);
     return result;
 };
diff --git a/tests/baselines/reference/exportAsNamespace2(module=amd).js b/tests/baselines/reference/exportAsNamespace2(module=amd).js
index e00e5f74776..6a75936ea80 100644
--- a/tests/baselines/reference/exportAsNamespace2(module=amd).js
+++ b/tests/baselines/reference/exportAsNamespace2(module=amd).js
@@ -46,7 +46,7 @@ var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;
     var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    if (mod != null) for (var k in mod) if (Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
     __setModuleDefault(result, mod);
     return result;
 };
diff --git a/tests/baselines/reference/exportAsNamespace2(module=commonjs).js b/tests/baselines/reference/exportAsNamespace2(module=commonjs).js
index 5a0c90421ba..3197e8ad518 100644
--- a/tests/baselines/reference/exportAsNamespace2(module=commonjs).js
+++ b/tests/baselines/reference/exportAsNamespace2(module=commonjs).js
@@ -37,7 +37,7 @@ var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;
     var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    if (mod != null) for (var k in mod) if (Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
     __setModuleDefault(result, mod);
     return result;
 };
@@ -62,7 +62,7 @@ var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;
     var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    if (mod != null) for (var k in mod) if (Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
     __setModuleDefault(result, mod);
     return result;
 };
diff --git a/tests/baselines/reference/exportAsNamespace2(module=umd).js b/tests/baselines/reference/exportAsNamespace2(module=umd).js
index b018e5d60bc..9c84f53a3aa 100644
--- a/tests/baselines/reference/exportAsNamespace2(module=umd).js
+++ b/tests/baselines/reference/exportAsNamespace2(module=umd).js
@@ -46,7 +46,7 @@ var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;
     var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    if (mod != null) for (var k in mod) if (Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
     __setModuleDefault(result, mod);
     return result;
 };
@@ -81,7 +81,7 @@ var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;
     var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    if (mod != null) for (var k in mod) if (Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
     __setModuleDefault(result, mod);
     return result;
 };
diff --git a/tests/baselines/reference/exportAsNamespace3(module=amd).js b/tests/baselines/reference/exportAsNamespace3(module=amd).js
index b8fb1bd8bb3..31dfbe779f7 100644
--- a/tests/baselines/reference/exportAsNamespace3(module=amd).js
+++ b/tests/baselines/reference/exportAsNamespace3(module=amd).js
@@ -52,7 +52,7 @@ var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;
     var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    if (mod != null) for (var k in mod) if (Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
     __setModuleDefault(result, mod);
     return result;
 };
diff --git a/tests/baselines/reference/exportAsNamespace3(module=commonjs).js b/tests/baselines/reference/exportAsNamespace3(module=commonjs).js
index 1c14e4f8d3f..827427ab48d 100644
--- a/tests/baselines/reference/exportAsNamespace3(module=commonjs).js
+++ b/tests/baselines/reference/exportAsNamespace3(module=commonjs).js
@@ -40,7 +40,7 @@ var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;
     var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    if (mod != null) for (var k in mod) if (Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
     __setModuleDefault(result, mod);
     return result;
 };
@@ -68,7 +68,7 @@ var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;
     var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    if (mod != null) for (var k in mod) if (Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
     __setModuleDefault(result, mod);
     return result;
 };
diff --git a/tests/baselines/reference/exportAsNamespace3(module=umd).js b/tests/baselines/reference/exportAsNamespace3(module=umd).js
index 00f01b0efc9..8bad04d057f 100644
--- a/tests/baselines/reference/exportAsNamespace3(module=umd).js
+++ b/tests/baselines/reference/exportAsNamespace3(module=umd).js
@@ -49,7 +49,7 @@ var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;
     var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    if (mod != null) for (var k in mod) if (Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
     __setModuleDefault(result, mod);
     return result;
 };
@@ -87,7 +87,7 @@ var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;
     var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    if (mod != null) for (var k in mod) if (Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
     __setModuleDefault(result, mod);
     return result;
 };
diff --git a/tests/baselines/reference/exportAssignmentOfGenericType1.js b/tests/baselines/reference/exportAssignmentOfGenericType1.js
index c9b807c8dfd..3c392e5d05f 100644
--- a/tests/baselines/reference/exportAssignmentOfGenericType1.js
+++ b/tests/baselines/reference/exportAssignmentOfGenericType1.js
@@ -28,7 +28,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/exportClassExtendingIntersection.js b/tests/baselines/reference/exportClassExtendingIntersection.js
index dcc24805796..cda0d76b109 100644
--- a/tests/baselines/reference/exportClassExtendingIntersection.js
+++ b/tests/baselines/reference/exportClassExtendingIntersection.js
@@ -50,7 +50,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
@@ -76,7 +76,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/exportDeclarationInInternalModule.js b/tests/baselines/reference/exportDeclarationInInternalModule.js
index a0bb5687fd8..ec87d8a94ba 100644
--- a/tests/baselines/reference/exportDeclarationInInternalModule.js
+++ b/tests/baselines/reference/exportDeclarationInInternalModule.js
@@ -22,7 +22,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/exportDefault.js b/tests/baselines/reference/exportDefault.js
index 3e0e266ad50..3c42973a164 100644
--- a/tests/baselines/reference/exportDefault.js
+++ b/tests/baselines/reference/exportDefault.js
@@ -58,7 +58,7 @@ var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;
     var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    if (mod != null) for (var k in mod) if (Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
     __setModuleDefault(result, mod);
     return result;
 };
@@ -91,7 +91,7 @@ var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;
     var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    if (mod != null) for (var k in mod) if (Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
     __setModuleDefault(result, mod);
     return result;
 };
diff --git a/tests/baselines/reference/exportDefaultAbstractClass.js b/tests/baselines/reference/exportDefaultAbstractClass.js
index cf11705bdb5..30bf12124fb 100644
--- a/tests/baselines/reference/exportDefaultAbstractClass.js
+++ b/tests/baselines/reference/exportDefaultAbstractClass.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
@@ -48,7 +48,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/exportNamespace1.js b/tests/baselines/reference/exportNamespace1.js
index 7a53e95c418..8dd6bd9529e 100644
--- a/tests/baselines/reference/exportNamespace1.js
+++ b/tests/baselines/reference/exportNamespace1.js
@@ -36,7 +36,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./b"), exports);
diff --git a/tests/baselines/reference/exportStar-amd.js b/tests/baselines/reference/exportStar-amd.js
index 02a1c32415d..3b6df6b1373 100644
--- a/tests/baselines/reference/exportStar-amd.js
+++ b/tests/baselines/reference/exportStar-amd.js
@@ -63,7 +63,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 define(["require", "exports", "./t1", "./t2", "./t3"], function (require, exports, t1_1, t2_1, t3_1) {
     "use strict";
diff --git a/tests/baselines/reference/exportStar.js b/tests/baselines/reference/exportStar.js
index 00b20b2c454..39e95a934a0 100644
--- a/tests/baselines/reference/exportStar.js
+++ b/tests/baselines/reference/exportStar.js
@@ -58,7 +58,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 Object.defineProperty(exports, "__esModule", { value: true });
 __exportStar(require("./t1"), exports);
diff --git a/tests/baselines/reference/exportStarForValues7.js b/tests/baselines/reference/exportStarForValues7.js
index 69d636af291..e5ccef57615 100644
--- a/tests/baselines/reference/exportStarForValues7.js
+++ b/tests/baselines/reference/exportStarForValues7.js
@@ -31,7 +31,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 define(["require", "exports", "file2"], function (require, exports, file2_1) {
     "use strict";
diff --git a/tests/baselines/reference/exportStarForValues8.js b/tests/baselines/reference/exportStarForValues8.js
index 61ddc4eccf4..c2bc26b1317 100644
--- a/tests/baselines/reference/exportStarForValues8.js
+++ b/tests/baselines/reference/exportStarForValues8.js
@@ -49,7 +49,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 define(["require", "exports", "file2", "file3"], function (require, exports, file2_1, file3_1) {
     "use strict";
@@ -67,7 +67,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 define(["require", "exports", "file4"], function (require, exports, file4_1) {
     "use strict";
diff --git a/tests/baselines/reference/exportStarForValues9.js b/tests/baselines/reference/exportStarForValues9.js
index 5bbf6bce4ce..fc310e35798 100644
--- a/tests/baselines/reference/exportStarForValues9.js
+++ b/tests/baselines/reference/exportStarForValues9.js
@@ -29,7 +29,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 define(["require", "exports", "file2"], function (require, exports, file2_1) {
     "use strict";
@@ -46,7 +46,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 define(["require", "exports", "file3"], function (require, exports, file3_1) {
     "use strict";
diff --git a/tests/baselines/reference/exportStarFromEmptyModule.js b/tests/baselines/reference/exportStarFromEmptyModule.js
index ef3571a4746..f2702b63756 100644
--- a/tests/baselines/reference/exportStarFromEmptyModule.js
+++ b/tests/baselines/reference/exportStarFromEmptyModule.js
@@ -43,7 +43,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 Object.defineProperty(exports, "__esModule", { value: true });
 __exportStar(require("./exportStarFromEmptyModule_module2"), exports);
diff --git a/tests/baselines/reference/extBaseClass1.js b/tests/baselines/reference/extBaseClass1.js
index 1891a78c422..889f00da506 100644
--- a/tests/baselines/reference/extBaseClass1.js
+++ b/tests/baselines/reference/extBaseClass1.js
@@ -24,7 +24,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/extBaseClass2.js b/tests/baselines/reference/extBaseClass2.js
index 703f8070a44..09112dace61 100644
--- a/tests/baselines/reference/extBaseClass2.js
+++ b/tests/baselines/reference/extBaseClass2.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/extendAndImplementTheSameBaseType.js b/tests/baselines/reference/extendAndImplementTheSameBaseType.js
index 24a9d09e190..16727d9e087 100644
--- a/tests/baselines/reference/extendAndImplementTheSameBaseType.js
+++ b/tests/baselines/reference/extendAndImplementTheSameBaseType.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/extendAndImplementTheSameBaseType2.js b/tests/baselines/reference/extendAndImplementTheSameBaseType2.js
index b18e331a902..de26c820505 100644
--- a/tests/baselines/reference/extendAndImplementTheSameBaseType2.js
+++ b/tests/baselines/reference/extendAndImplementTheSameBaseType2.js
@@ -21,7 +21,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/extendBaseClassBeforeItsDeclared.js b/tests/baselines/reference/extendBaseClassBeforeItsDeclared.js
index 149b33c1ff2..f620e629d51 100644
--- a/tests/baselines/reference/extendBaseClassBeforeItsDeclared.js
+++ b/tests/baselines/reference/extendBaseClassBeforeItsDeclared.js
@@ -8,7 +8,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/extendClassExpressionFromModule.js b/tests/baselines/reference/extendClassExpressionFromModule.js
index 8878af7efb6..96aefde09be 100644
--- a/tests/baselines/reference/extendClassExpressionFromModule.js
+++ b/tests/baselines/reference/extendClassExpressionFromModule.js
@@ -25,7 +25,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/extendConstructSignatureInInterface.js b/tests/baselines/reference/extendConstructSignatureInInterface.js
index f94010bef97..1dd003021c7 100644
--- a/tests/baselines/reference/extendConstructSignatureInInterface.js
+++ b/tests/baselines/reference/extendConstructSignatureInInterface.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/extendFromAny.js b/tests/baselines/reference/extendFromAny.js
index d7d4a4b8ba2..01de898e502 100644
--- a/tests/baselines/reference/extendFromAny.js
+++ b/tests/baselines/reference/extendFromAny.js
@@ -17,7 +17,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/extendNonClassSymbol1.js b/tests/baselines/reference/extendNonClassSymbol1.js
index cb5cf45baa2..8bd7ed7e84f 100644
--- a/tests/baselines/reference/extendNonClassSymbol1.js
+++ b/tests/baselines/reference/extendNonClassSymbol1.js
@@ -8,7 +8,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/extendNonClassSymbol2.js b/tests/baselines/reference/extendNonClassSymbol2.js
index 6f6cebbdf28..74cb7a35c79 100644
--- a/tests/baselines/reference/extendNonClassSymbol2.js
+++ b/tests/baselines/reference/extendNonClassSymbol2.js
@@ -10,7 +10,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/extendPrivateConstructorClass.js b/tests/baselines/reference/extendPrivateConstructorClass.js
index 96c06ca6e68..61eaf32e372 100644
--- a/tests/baselines/reference/extendPrivateConstructorClass.js
+++ b/tests/baselines/reference/extendPrivateConstructorClass.js
@@ -14,7 +14,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/extendingClassFromAliasAndUsageInIndexer.js b/tests/baselines/reference/extendingClassFromAliasAndUsageInIndexer.js
index a25d6dc5f36..2eb02f40511 100644
--- a/tests/baselines/reference/extendingClassFromAliasAndUsageInIndexer.js
+++ b/tests/baselines/reference/extendingClassFromAliasAndUsageInIndexer.js
@@ -47,7 +47,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
@@ -72,7 +72,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/extendsClause.js b/tests/baselines/reference/extendsClause.js
index d4b31c04840..6027747105f 100644
--- a/tests/baselines/reference/extendsClause.js
+++ b/tests/baselines/reference/extendsClause.js
@@ -39,7 +39,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/extendsClauseAlreadySeen.js b/tests/baselines/reference/extendsClauseAlreadySeen.js
index d1ffec90d29..034d78f5d1d 100644
--- a/tests/baselines/reference/extendsClauseAlreadySeen.js
+++ b/tests/baselines/reference/extendsClauseAlreadySeen.js
@@ -11,7 +11,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/extendsClauseAlreadySeen2.js b/tests/baselines/reference/extendsClauseAlreadySeen2.js
index 2a3bac4008d..67ae052d946 100644
--- a/tests/baselines/reference/extendsClauseAlreadySeen2.js
+++ b/tests/baselines/reference/extendsClauseAlreadySeen2.js
@@ -11,7 +11,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/extendsUntypedModule.js b/tests/baselines/reference/extendsUntypedModule.js
index ff5dce7df0d..03cc0ccfc44 100644
--- a/tests/baselines/reference/extendsUntypedModule.js
+++ b/tests/baselines/reference/extendsUntypedModule.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/fluentClasses.js b/tests/baselines/reference/fluentClasses.js
index 9f68730010d..05ae3e8ddea 100644
--- a/tests/baselines/reference/fluentClasses.js
+++ b/tests/baselines/reference/fluentClasses.js
@@ -23,7 +23,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/for-inStatements.js b/tests/baselines/reference/for-inStatements.js
index 37349f4d6e6..9ebbf19e9b3 100644
--- a/tests/baselines/reference/for-inStatements.js
+++ b/tests/baselines/reference/for-inStatements.js
@@ -85,7 +85,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/for-inStatementsInvalid.js b/tests/baselines/reference/for-inStatementsInvalid.js
index 195f166317c..de8199c40d6 100644
--- a/tests/baselines/reference/for-inStatementsInvalid.js
+++ b/tests/baselines/reference/for-inStatementsInvalid.js
@@ -68,7 +68,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/forStatementsMultipleInvalidDecl.js b/tests/baselines/reference/forStatementsMultipleInvalidDecl.js
index 0dcda5b1bbb..abfb3aea001 100644
--- a/tests/baselines/reference/forStatementsMultipleInvalidDecl.js
+++ b/tests/baselines/reference/forStatementsMultipleInvalidDecl.js
@@ -58,7 +58,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/functionImplementationErrors.js b/tests/baselines/reference/functionImplementationErrors.js
index 10595e3152c..b1124574e5a 100644
--- a/tests/baselines/reference/functionImplementationErrors.js
+++ b/tests/baselines/reference/functionImplementationErrors.js
@@ -78,7 +78,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/functionImplementations.js b/tests/baselines/reference/functionImplementations.js
index d78f694377d..e2d8586dfef 100644
--- a/tests/baselines/reference/functionImplementations.js
+++ b/tests/baselines/reference/functionImplementations.js
@@ -161,7 +161,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/functionSubtypingOfVarArgs.js b/tests/baselines/reference/functionSubtypingOfVarArgs.js
index 6a039fa4821..f63daa56f3b 100644
--- a/tests/baselines/reference/functionSubtypingOfVarArgs.js
+++ b/tests/baselines/reference/functionSubtypingOfVarArgs.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/functionSubtypingOfVarArgs2.js b/tests/baselines/reference/functionSubtypingOfVarArgs2.js
index 16b2b9537e7..155c288d5d7 100644
--- a/tests/baselines/reference/functionSubtypingOfVarArgs2.js
+++ b/tests/baselines/reference/functionSubtypingOfVarArgs2.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/generatedContextualTyping.js b/tests/baselines/reference/generatedContextualTyping.js
index 961510504f9..c391c285599 100644
--- a/tests/baselines/reference/generatedContextualTyping.js
+++ b/tests/baselines/reference/generatedContextualTyping.js
@@ -359,7 +359,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericBaseClassLiteralProperty.js b/tests/baselines/reference/genericBaseClassLiteralProperty.js
index 5756b5aedff..04aadf5a91b 100644
--- a/tests/baselines/reference/genericBaseClassLiteralProperty.js
+++ b/tests/baselines/reference/genericBaseClassLiteralProperty.js
@@ -17,7 +17,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericBaseClassLiteralProperty2.js b/tests/baselines/reference/genericBaseClassLiteralProperty2.js
index 48dc4da7aa3..492414a278d 100644
--- a/tests/baselines/reference/genericBaseClassLiteralProperty2.js
+++ b/tests/baselines/reference/genericBaseClassLiteralProperty2.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericCallWithConstraintsTypeArgumentInference.js b/tests/baselines/reference/genericCallWithConstraintsTypeArgumentInference.js
index daa564b9915..d8deb60bbbe 100644
--- a/tests/baselines/reference/genericCallWithConstraintsTypeArgumentInference.js
+++ b/tests/baselines/reference/genericCallWithConstraintsTypeArgumentInference.js
@@ -113,7 +113,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericCallWithObjectTypeArgs2.js b/tests/baselines/reference/genericCallWithObjectTypeArgs2.js
index 06b0267b269..9cca66978ee 100644
--- a/tests/baselines/reference/genericCallWithObjectTypeArgs2.js
+++ b/tests/baselines/reference/genericCallWithObjectTypeArgs2.js
@@ -37,7 +37,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericCallWithObjectTypeArgsAndConstraints2.js b/tests/baselines/reference/genericCallWithObjectTypeArgsAndConstraints2.js
index cf8c30e6430..187c45cf697 100644
--- a/tests/baselines/reference/genericCallWithObjectTypeArgsAndConstraints2.js
+++ b/tests/baselines/reference/genericCallWithObjectTypeArgsAndConstraints2.js
@@ -45,7 +45,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericCallWithObjectTypeArgsAndConstraints3.js b/tests/baselines/reference/genericCallWithObjectTypeArgsAndConstraints3.js
index c9d4de80643..be8ee9e0e52 100644
--- a/tests/baselines/reference/genericCallWithObjectTypeArgsAndConstraints3.js
+++ b/tests/baselines/reference/genericCallWithObjectTypeArgsAndConstraints3.js
@@ -43,7 +43,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericCallbacksAndClassHierarchy.js b/tests/baselines/reference/genericCallbacksAndClassHierarchy.js
index 4056291f961..3a06f0f4a8d 100644
--- a/tests/baselines/reference/genericCallbacksAndClassHierarchy.js
+++ b/tests/baselines/reference/genericCallbacksAndClassHierarchy.js
@@ -28,7 +28,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericClassExpressionInFunction.js b/tests/baselines/reference/genericClassExpressionInFunction.js
index bf93d5d336b..1990f71015a 100644
--- a/tests/baselines/reference/genericClassExpressionInFunction.js
+++ b/tests/baselines/reference/genericClassExpressionInFunction.js
@@ -36,7 +36,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericClassInheritsConstructorFromNonGenericClass.js b/tests/baselines/reference/genericClassInheritsConstructorFromNonGenericClass.js
index 2f36fc1290c..e5109beb8ae 100644
--- a/tests/baselines/reference/genericClassInheritsConstructorFromNonGenericClass.js
+++ b/tests/baselines/reference/genericClassInheritsConstructorFromNonGenericClass.js
@@ -10,7 +10,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericClassPropertyInheritanceSpecialization.js b/tests/baselines/reference/genericClassPropertyInheritanceSpecialization.js
index d99e89f06c0..dcebdd3369c 100644
--- a/tests/baselines/reference/genericClassPropertyInheritanceSpecialization.js
+++ b/tests/baselines/reference/genericClassPropertyInheritanceSpecialization.js
@@ -80,7 +80,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericClassStaticMethod.js b/tests/baselines/reference/genericClassStaticMethod.js
index 216d915d6e5..5f2156a9ea6 100644
--- a/tests/baselines/reference/genericClassStaticMethod.js
+++ b/tests/baselines/reference/genericClassStaticMethod.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericClasses3.js b/tests/baselines/reference/genericClasses3.js
index ff4e5e1a095..0bda39dcc19 100644
--- a/tests/baselines/reference/genericClasses3.js
+++ b/tests/baselines/reference/genericClasses3.js
@@ -22,7 +22,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericConstraintOnExtendedBuiltinTypes.js b/tests/baselines/reference/genericConstraintOnExtendedBuiltinTypes.js
index b5d7064c993..87ee3e75b2a 100644
--- a/tests/baselines/reference/genericConstraintOnExtendedBuiltinTypes.js
+++ b/tests/baselines/reference/genericConstraintOnExtendedBuiltinTypes.js
@@ -31,7 +31,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericConstraintOnExtendedBuiltinTypes2.js b/tests/baselines/reference/genericConstraintOnExtendedBuiltinTypes2.js
index dae891378a2..e243fc57f81 100644
--- a/tests/baselines/reference/genericConstraintOnExtendedBuiltinTypes2.js
+++ b/tests/baselines/reference/genericConstraintOnExtendedBuiltinTypes2.js
@@ -30,7 +30,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericDerivedTypeWithSpecializedBase.js b/tests/baselines/reference/genericDerivedTypeWithSpecializedBase.js
index 7803c463eb8..d3b01267423 100644
--- a/tests/baselines/reference/genericDerivedTypeWithSpecializedBase.js
+++ b/tests/baselines/reference/genericDerivedTypeWithSpecializedBase.js
@@ -17,7 +17,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericDerivedTypeWithSpecializedBase2.js b/tests/baselines/reference/genericDerivedTypeWithSpecializedBase2.js
index 08674c5a251..61806008b34 100644
--- a/tests/baselines/reference/genericDerivedTypeWithSpecializedBase2.js
+++ b/tests/baselines/reference/genericDerivedTypeWithSpecializedBase2.js
@@ -17,7 +17,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericInheritedDefaultConstructors.js b/tests/baselines/reference/genericInheritedDefaultConstructors.js
index 9ebf6c517ea..c543c448762 100644
--- a/tests/baselines/reference/genericInheritedDefaultConstructors.js
+++ b/tests/baselines/reference/genericInheritedDefaultConstructors.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericPrototypeProperty2.js b/tests/baselines/reference/genericPrototypeProperty2.js
index 4d9c9fced86..62d8f8af0e2 100644
--- a/tests/baselines/reference/genericPrototypeProperty2.js
+++ b/tests/baselines/reference/genericPrototypeProperty2.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericPrototypeProperty3.js b/tests/baselines/reference/genericPrototypeProperty3.js
index 433b57906c3..99178918374 100644
--- a/tests/baselines/reference/genericPrototypeProperty3.js
+++ b/tests/baselines/reference/genericPrototypeProperty3.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericRecursiveImplicitConstructorErrors2.js b/tests/baselines/reference/genericRecursiveImplicitConstructorErrors2.js
index e2567e52764..ac1729a4871 100644
--- a/tests/baselines/reference/genericRecursiveImplicitConstructorErrors2.js
+++ b/tests/baselines/reference/genericRecursiveImplicitConstructorErrors2.js
@@ -31,7 +31,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericRecursiveImplicitConstructorErrors3.js b/tests/baselines/reference/genericRecursiveImplicitConstructorErrors3.js
index 3f95abc3c35..bb80d2045ae 100644
--- a/tests/baselines/reference/genericRecursiveImplicitConstructorErrors3.js
+++ b/tests/baselines/reference/genericRecursiveImplicitConstructorErrors3.js
@@ -35,7 +35,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericTypeAssertions2.js b/tests/baselines/reference/genericTypeAssertions2.js
index 786ce3440d2..1cb08b21ce5 100644
--- a/tests/baselines/reference/genericTypeAssertions2.js
+++ b/tests/baselines/reference/genericTypeAssertions2.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericTypeAssertions4.js b/tests/baselines/reference/genericTypeAssertions4.js
index bcf6c1e7b8e..4939e7de9e1 100644
--- a/tests/baselines/reference/genericTypeAssertions4.js
+++ b/tests/baselines/reference/genericTypeAssertions4.js
@@ -30,7 +30,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericTypeAssertions6.js b/tests/baselines/reference/genericTypeAssertions6.js
index 70136b61e2a..133d65fff80 100644
--- a/tests/baselines/reference/genericTypeAssertions6.js
+++ b/tests/baselines/reference/genericTypeAssertions6.js
@@ -29,7 +29,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericTypeConstraints.js b/tests/baselines/reference/genericTypeConstraints.js
index 8cf0092ce71..6d49d5313a1 100644
--- a/tests/baselines/reference/genericTypeConstraints.js
+++ b/tests/baselines/reference/genericTypeConstraints.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericTypeReferenceWithoutTypeArgument.js b/tests/baselines/reference/genericTypeReferenceWithoutTypeArgument.js
index ad5c6d483e3..4abd3431cbb 100644
--- a/tests/baselines/reference/genericTypeReferenceWithoutTypeArgument.js
+++ b/tests/baselines/reference/genericTypeReferenceWithoutTypeArgument.js
@@ -44,7 +44,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericTypeReferenceWithoutTypeArgument2.js b/tests/baselines/reference/genericTypeReferenceWithoutTypeArgument2.js
index c0eb72cf288..d1a05327c3e 100644
--- a/tests/baselines/reference/genericTypeReferenceWithoutTypeArgument2.js
+++ b/tests/baselines/reference/genericTypeReferenceWithoutTypeArgument2.js
@@ -44,7 +44,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/genericWithIndexerOfTypeParameterType2.js b/tests/baselines/reference/genericWithIndexerOfTypeParameterType2.js
index 9c578edab0d..265fd72b9e8 100644
--- a/tests/baselines/reference/genericWithIndexerOfTypeParameterType2.js
+++ b/tests/baselines/reference/genericWithIndexerOfTypeParameterType2.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/heterogeneousArrayLiterals.js b/tests/baselines/reference/heterogeneousArrayLiterals.js
index b3d710a63b9..94d1c53f671 100644
--- a/tests/baselines/reference/heterogeneousArrayLiterals.js
+++ b/tests/baselines/reference/heterogeneousArrayLiterals.js
@@ -137,7 +137,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/ifDoWhileStatements.js b/tests/baselines/reference/ifDoWhileStatements.js
index d81331b5a99..a36975a40bf 100644
--- a/tests/baselines/reference/ifDoWhileStatements.js
+++ b/tests/baselines/reference/ifDoWhileStatements.js
@@ -167,7 +167,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/illegalSuperCallsInConstructor.js b/tests/baselines/reference/illegalSuperCallsInConstructor.js
index 2c914494b80..7137216402d 100644
--- a/tests/baselines/reference/illegalSuperCallsInConstructor.js
+++ b/tests/baselines/reference/illegalSuperCallsInConstructor.js
@@ -25,7 +25,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/implementClausePrecedingExtends.js b/tests/baselines/reference/implementClausePrecedingExtends.js
index f915ba4514a..9ffac83b6fc 100644
--- a/tests/baselines/reference/implementClausePrecedingExtends.js
+++ b/tests/baselines/reference/implementClausePrecedingExtends.js
@@ -7,7 +7,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/implementingAnInterfaceExtendingClassWithPrivates2.js b/tests/baselines/reference/implementingAnInterfaceExtendingClassWithPrivates2.js
index 65cd2a5c28d..a645b9d4a66 100644
--- a/tests/baselines/reference/implementingAnInterfaceExtendingClassWithPrivates2.js
+++ b/tests/baselines/reference/implementingAnInterfaceExtendingClassWithPrivates2.js
@@ -90,7 +90,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/implementingAnInterfaceExtendingClassWithProtecteds.js b/tests/baselines/reference/implementingAnInterfaceExtendingClassWithProtecteds.js
index 315a26b124a..2c5d9f46dfd 100644
--- a/tests/baselines/reference/implementingAnInterfaceExtendingClassWithProtecteds.js
+++ b/tests/baselines/reference/implementingAnInterfaceExtendingClassWithProtecteds.js
@@ -46,7 +46,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/importAsBaseClass.js b/tests/baselines/reference/importAsBaseClass.js
index 1a9d581f101..50564677d6a 100644
--- a/tests/baselines/reference/importAsBaseClass.js
+++ b/tests/baselines/reference/importAsBaseClass.js
@@ -26,7 +26,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/importEquals1.js b/tests/baselines/reference/importEquals1.js
index 7a07d4d9906..8b967103bf9 100644
--- a/tests/baselines/reference/importEquals1.js
+++ b/tests/baselines/reference/importEquals1.js
@@ -57,7 +57,7 @@ var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;
     var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    if (mod != null) for (var k in mod) if (Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
     __setModuleDefault(result, mod);
     return result;
 };
diff --git a/tests/baselines/reference/importEquals2.js b/tests/baselines/reference/importEquals2.js
index a96a14a6514..3357377d53f 100644
--- a/tests/baselines/reference/importEquals2.js
+++ b/tests/baselines/reference/importEquals2.js
@@ -38,7 +38,7 @@ var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;
     var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    if (mod != null) for (var k in mod) if (Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
     __setModuleDefault(result, mod);
     return result;
 };
diff --git a/tests/baselines/reference/importHelpers.js b/tests/baselines/reference/importHelpers.js
index cdfba3d73f9..a02568da5da 100644
--- a/tests/baselines/reference/importHelpers.js
+++ b/tests/baselines/reference/importHelpers.js
@@ -90,7 +90,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/importHelpersNoHelpers.js b/tests/baselines/reference/importHelpersNoHelpers.js
index 52e878a968e..a0eb89546b6 100644
--- a/tests/baselines/reference/importHelpersNoHelpers.js
+++ b/tests/baselines/reference/importHelpersNoHelpers.js
@@ -83,7 +83,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/importHelpersNoModule.js b/tests/baselines/reference/importHelpersNoModule.js
index 3afd3417e08..ad8fb324dd7 100644
--- a/tests/baselines/reference/importHelpersNoModule.js
+++ b/tests/baselines/reference/importHelpersNoModule.js
@@ -64,7 +64,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/importNotElidedWhenNotFound.js b/tests/baselines/reference/importNotElidedWhenNotFound.js
index 9af5664d338..6333fcff7f0 100644
--- a/tests/baselines/reference/importNotElidedWhenNotFound.js
+++ b/tests/baselines/reference/importNotElidedWhenNotFound.js
@@ -23,7 +23,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/importShadowsGlobalName.js b/tests/baselines/reference/importShadowsGlobalName.js
index c1ae9b816fc..ce2ecafce17 100644
--- a/tests/baselines/reference/importShadowsGlobalName.js
+++ b/tests/baselines/reference/importShadowsGlobalName.js
@@ -24,7 +24,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/importUsedInExtendsList1.js b/tests/baselines/reference/importUsedInExtendsList1.js
index 8eb1b601625..53d6eeb959b 100644
--- a/tests/baselines/reference/importUsedInExtendsList1.js
+++ b/tests/baselines/reference/importUsedInExtendsList1.js
@@ -26,7 +26,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/indexedAccessRelation.js b/tests/baselines/reference/indexedAccessRelation.js
index 643200eaf6e..7bab276dac5 100644
--- a/tests/baselines/reference/indexedAccessRelation.js
+++ b/tests/baselines/reference/indexedAccessRelation.js
@@ -26,7 +26,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/indexedAccessTypeConstraints.js b/tests/baselines/reference/indexedAccessTypeConstraints.js
index 24ed802d7c6..67cdfb71c63 100644
--- a/tests/baselines/reference/indexedAccessTypeConstraints.js
+++ b/tests/baselines/reference/indexedAccessTypeConstraints.js
@@ -42,7 +42,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/indexerConstraints2.js b/tests/baselines/reference/indexerConstraints2.js
index 634be50d22b..adce25026fd 100644
--- a/tests/baselines/reference/indexerConstraints2.js
+++ b/tests/baselines/reference/indexerConstraints2.js
@@ -86,7 +86,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/indirectSelfReference.js b/tests/baselines/reference/indirectSelfReference.js
index 9cf86981793..0f45ac1008a 100644
--- a/tests/baselines/reference/indirectSelfReference.js
+++ b/tests/baselines/reference/indirectSelfReference.js
@@ -7,7 +7,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/indirectSelfReferenceGeneric.js b/tests/baselines/reference/indirectSelfReferenceGeneric.js
index a70fdaddac5..ab38504ec2a 100644
--- a/tests/baselines/reference/indirectSelfReferenceGeneric.js
+++ b/tests/baselines/reference/indirectSelfReferenceGeneric.js
@@ -7,7 +7,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/infinitelyExpandingTypesNonGenericBase.js b/tests/baselines/reference/infinitelyExpandingTypesNonGenericBase.js
index 406ae7e5fc4..8789ed14610 100644
--- a/tests/baselines/reference/infinitelyExpandingTypesNonGenericBase.js
+++ b/tests/baselines/reference/infinitelyExpandingTypesNonGenericBase.js
@@ -29,7 +29,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritFromGenericTypeParameter.js b/tests/baselines/reference/inheritFromGenericTypeParameter.js
index 9821870ab35..d65cbe4edf2 100644
--- a/tests/baselines/reference/inheritFromGenericTypeParameter.js
+++ b/tests/baselines/reference/inheritFromGenericTypeParameter.js
@@ -7,7 +7,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritSameNamePrivatePropertiesFromSameOrigin.js b/tests/baselines/reference/inheritSameNamePrivatePropertiesFromSameOrigin.js
index f0db5d77f18..706d36854c7 100644
--- a/tests/baselines/reference/inheritSameNamePrivatePropertiesFromSameOrigin.js
+++ b/tests/baselines/reference/inheritSameNamePrivatePropertiesFromSameOrigin.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritance.js b/tests/baselines/reference/inheritance.js
index 6ef3652ce02..aa87de523c3 100644
--- a/tests/baselines/reference/inheritance.js
+++ b/tests/baselines/reference/inheritance.js
@@ -39,7 +39,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritance1.js b/tests/baselines/reference/inheritance1.js
index c6c01b716dd..10477378882 100644
--- a/tests/baselines/reference/inheritance1.js
+++ b/tests/baselines/reference/inheritance1.js
@@ -66,7 +66,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceGrandParentPrivateMemberCollision.js b/tests/baselines/reference/inheritanceGrandParentPrivateMemberCollision.js
index 394c139e9aa..5da7c5f319e 100644
--- a/tests/baselines/reference/inheritanceGrandParentPrivateMemberCollision.js
+++ b/tests/baselines/reference/inheritanceGrandParentPrivateMemberCollision.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceGrandParentPrivateMemberCollisionWithPublicMember.js b/tests/baselines/reference/inheritanceGrandParentPrivateMemberCollisionWithPublicMember.js
index 63b2bfe7baf..27e64cde414 100644
--- a/tests/baselines/reference/inheritanceGrandParentPrivateMemberCollisionWithPublicMember.js
+++ b/tests/baselines/reference/inheritanceGrandParentPrivateMemberCollisionWithPublicMember.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceGrandParentPublicMemberCollisionWithPrivateMember.js b/tests/baselines/reference/inheritanceGrandParentPublicMemberCollisionWithPrivateMember.js
index e6d9647a29d..1807924b73d 100644
--- a/tests/baselines/reference/inheritanceGrandParentPublicMemberCollisionWithPrivateMember.js
+++ b/tests/baselines/reference/inheritanceGrandParentPublicMemberCollisionWithPrivateMember.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceMemberAccessorOverridingAccessor.js b/tests/baselines/reference/inheritanceMemberAccessorOverridingAccessor.js
index 6a336d64f3b..d18514a3a15 100644
--- a/tests/baselines/reference/inheritanceMemberAccessorOverridingAccessor.js
+++ b/tests/baselines/reference/inheritanceMemberAccessorOverridingAccessor.js
@@ -22,7 +22,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceMemberAccessorOverridingMethod.js b/tests/baselines/reference/inheritanceMemberAccessorOverridingMethod.js
index 74da144f1d8..e9b7a636c15 100644
--- a/tests/baselines/reference/inheritanceMemberAccessorOverridingMethod.js
+++ b/tests/baselines/reference/inheritanceMemberAccessorOverridingMethod.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceMemberAccessorOverridingProperty.js b/tests/baselines/reference/inheritanceMemberAccessorOverridingProperty.js
index 53e045be2d3..e7cbd094b41 100644
--- a/tests/baselines/reference/inheritanceMemberAccessorOverridingProperty.js
+++ b/tests/baselines/reference/inheritanceMemberAccessorOverridingProperty.js
@@ -17,7 +17,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceMemberFuncOverridingAccessor.js b/tests/baselines/reference/inheritanceMemberFuncOverridingAccessor.js
index ebafc237925..9d15a239981 100644
--- a/tests/baselines/reference/inheritanceMemberFuncOverridingAccessor.js
+++ b/tests/baselines/reference/inheritanceMemberFuncOverridingAccessor.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceMemberFuncOverridingMethod.js b/tests/baselines/reference/inheritanceMemberFuncOverridingMethod.js
index 8236df5357f..fe433891573 100644
--- a/tests/baselines/reference/inheritanceMemberFuncOverridingMethod.js
+++ b/tests/baselines/reference/inheritanceMemberFuncOverridingMethod.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceMemberFuncOverridingProperty.js b/tests/baselines/reference/inheritanceMemberFuncOverridingProperty.js
index f6d1413cb36..fd74b8cb01d 100644
--- a/tests/baselines/reference/inheritanceMemberFuncOverridingProperty.js
+++ b/tests/baselines/reference/inheritanceMemberFuncOverridingProperty.js
@@ -14,7 +14,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceMemberPropertyOverridingAccessor.js b/tests/baselines/reference/inheritanceMemberPropertyOverridingAccessor.js
index 1cab36c1399..ad832ccb643 100644
--- a/tests/baselines/reference/inheritanceMemberPropertyOverridingAccessor.js
+++ b/tests/baselines/reference/inheritanceMemberPropertyOverridingAccessor.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceMemberPropertyOverridingMethod.js b/tests/baselines/reference/inheritanceMemberPropertyOverridingMethod.js
index 3b29c457ef3..01e939821b4 100644
--- a/tests/baselines/reference/inheritanceMemberPropertyOverridingMethod.js
+++ b/tests/baselines/reference/inheritanceMemberPropertyOverridingMethod.js
@@ -14,7 +14,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceMemberPropertyOverridingProperty.js b/tests/baselines/reference/inheritanceMemberPropertyOverridingProperty.js
index b9bb7dc695f..a115c62512e 100644
--- a/tests/baselines/reference/inheritanceMemberPropertyOverridingProperty.js
+++ b/tests/baselines/reference/inheritanceMemberPropertyOverridingProperty.js
@@ -12,7 +12,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceOfGenericConstructorMethod1.js b/tests/baselines/reference/inheritanceOfGenericConstructorMethod1.js
index 2b346e8a0fa..436ee095bcc 100644
--- a/tests/baselines/reference/inheritanceOfGenericConstructorMethod1.js
+++ b/tests/baselines/reference/inheritanceOfGenericConstructorMethod1.js
@@ -12,7 +12,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceOfGenericConstructorMethod2.js b/tests/baselines/reference/inheritanceOfGenericConstructorMethod2.js
index 8635b909d65..49c3c64566e 100644
--- a/tests/baselines/reference/inheritanceOfGenericConstructorMethod2.js
+++ b/tests/baselines/reference/inheritanceOfGenericConstructorMethod2.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceStaticAccessorOverridingAccessor.js b/tests/baselines/reference/inheritanceStaticAccessorOverridingAccessor.js
index d72f6bd894b..797871e1142 100644
--- a/tests/baselines/reference/inheritanceStaticAccessorOverridingAccessor.js
+++ b/tests/baselines/reference/inheritanceStaticAccessorOverridingAccessor.js
@@ -22,7 +22,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceStaticAccessorOverridingMethod.js b/tests/baselines/reference/inheritanceStaticAccessorOverridingMethod.js
index 350b3437e19..2fd6a16052b 100644
--- a/tests/baselines/reference/inheritanceStaticAccessorOverridingMethod.js
+++ b/tests/baselines/reference/inheritanceStaticAccessorOverridingMethod.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceStaticAccessorOverridingProperty.js b/tests/baselines/reference/inheritanceStaticAccessorOverridingProperty.js
index 6cb06206ceb..5e135a93734 100644
--- a/tests/baselines/reference/inheritanceStaticAccessorOverridingProperty.js
+++ b/tests/baselines/reference/inheritanceStaticAccessorOverridingProperty.js
@@ -17,7 +17,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceStaticFuncOverridingAccessor.js b/tests/baselines/reference/inheritanceStaticFuncOverridingAccessor.js
index 4b1b97e3c0f..0ac3d19a09b 100644
--- a/tests/baselines/reference/inheritanceStaticFuncOverridingAccessor.js
+++ b/tests/baselines/reference/inheritanceStaticFuncOverridingAccessor.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceStaticFuncOverridingAccessorOfFuncType.js b/tests/baselines/reference/inheritanceStaticFuncOverridingAccessorOfFuncType.js
index 9d3166a5a4b..ad15969b4c8 100644
--- a/tests/baselines/reference/inheritanceStaticFuncOverridingAccessorOfFuncType.js
+++ b/tests/baselines/reference/inheritanceStaticFuncOverridingAccessorOfFuncType.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceStaticFuncOverridingMethod.js b/tests/baselines/reference/inheritanceStaticFuncOverridingMethod.js
index cb83e666784..9a2c3af1501 100644
--- a/tests/baselines/reference/inheritanceStaticFuncOverridingMethod.js
+++ b/tests/baselines/reference/inheritanceStaticFuncOverridingMethod.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceStaticFuncOverridingProperty.js b/tests/baselines/reference/inheritanceStaticFuncOverridingProperty.js
index bf32cc8ecb7..85b011173a2 100644
--- a/tests/baselines/reference/inheritanceStaticFuncOverridingProperty.js
+++ b/tests/baselines/reference/inheritanceStaticFuncOverridingProperty.js
@@ -14,7 +14,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceStaticFuncOverridingPropertyOfFuncType.js b/tests/baselines/reference/inheritanceStaticFuncOverridingPropertyOfFuncType.js
index aed7d3109cd..01fcf1fa936 100644
--- a/tests/baselines/reference/inheritanceStaticFuncOverridingPropertyOfFuncType.js
+++ b/tests/baselines/reference/inheritanceStaticFuncOverridingPropertyOfFuncType.js
@@ -14,7 +14,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceStaticFunctionOverridingInstanceProperty.js b/tests/baselines/reference/inheritanceStaticFunctionOverridingInstanceProperty.js
index 7af6c7abc69..9beb3ae700c 100644
--- a/tests/baselines/reference/inheritanceStaticFunctionOverridingInstanceProperty.js
+++ b/tests/baselines/reference/inheritanceStaticFunctionOverridingInstanceProperty.js
@@ -14,7 +14,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceStaticMembersCompatible.js b/tests/baselines/reference/inheritanceStaticMembersCompatible.js
index 18a5fba9fbc..da02be29198 100644
--- a/tests/baselines/reference/inheritanceStaticMembersCompatible.js
+++ b/tests/baselines/reference/inheritanceStaticMembersCompatible.js
@@ -12,7 +12,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceStaticMembersIncompatible.js b/tests/baselines/reference/inheritanceStaticMembersIncompatible.js
index 3b1d0da9111..51efe0f4b08 100644
--- a/tests/baselines/reference/inheritanceStaticMembersIncompatible.js
+++ b/tests/baselines/reference/inheritanceStaticMembersIncompatible.js
@@ -12,7 +12,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceStaticPropertyOverridingAccessor.js b/tests/baselines/reference/inheritanceStaticPropertyOverridingAccessor.js
index 02124e177f2..09560880977 100644
--- a/tests/baselines/reference/inheritanceStaticPropertyOverridingAccessor.js
+++ b/tests/baselines/reference/inheritanceStaticPropertyOverridingAccessor.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceStaticPropertyOverridingMethod.js b/tests/baselines/reference/inheritanceStaticPropertyOverridingMethod.js
index 7a7368dcaeb..ce6e4e5292b 100644
--- a/tests/baselines/reference/inheritanceStaticPropertyOverridingMethod.js
+++ b/tests/baselines/reference/inheritanceStaticPropertyOverridingMethod.js
@@ -14,7 +14,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritanceStaticPropertyOverridingProperty.js b/tests/baselines/reference/inheritanceStaticPropertyOverridingProperty.js
index 347e1c3ddb1..64136e1d18b 100644
--- a/tests/baselines/reference/inheritanceStaticPropertyOverridingProperty.js
+++ b/tests/baselines/reference/inheritanceStaticPropertyOverridingProperty.js
@@ -12,7 +12,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritedConstructorWithRestParams.js b/tests/baselines/reference/inheritedConstructorWithRestParams.js
index 85d1f41d926..d691457514b 100644
--- a/tests/baselines/reference/inheritedConstructorWithRestParams.js
+++ b/tests/baselines/reference/inheritedConstructorWithRestParams.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritedConstructorWithRestParams2.js b/tests/baselines/reference/inheritedConstructorWithRestParams2.js
index 92eacb7d32b..57aca4de7cc 100644
--- a/tests/baselines/reference/inheritedConstructorWithRestParams2.js
+++ b/tests/baselines/reference/inheritedConstructorWithRestParams2.js
@@ -39,7 +39,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inheritedModuleMembersForClodule.js b/tests/baselines/reference/inheritedModuleMembersForClodule.js
index 7e352b29e7b..95bece91d1f 100644
--- a/tests/baselines/reference/inheritedModuleMembersForClodule.js
+++ b/tests/baselines/reference/inheritedModuleMembersForClodule.js
@@ -26,7 +26,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/inlineJsxFactoryDeclarations.js b/tests/baselines/reference/inlineJsxFactoryDeclarations.js
index b4ec0ad1966..d7bb20955a6 100644
--- a/tests/baselines/reference/inlineJsxFactoryDeclarations.js
+++ b/tests/baselines/reference/inlineJsxFactoryDeclarations.js
@@ -70,7 +70,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 /** @jsx dom */
diff --git a/tests/baselines/reference/instanceOfAssignability.js b/tests/baselines/reference/instanceOfAssignability.js
index 9a93ea71e66..be3bdd78a7f 100644
--- a/tests/baselines/reference/instanceOfAssignability.js
+++ b/tests/baselines/reference/instanceOfAssignability.js
@@ -94,7 +94,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/instancePropertiesInheritedIntoClassType.js b/tests/baselines/reference/instancePropertiesInheritedIntoClassType.js
index e209c0784c9..6b9e3a82cb3 100644
--- a/tests/baselines/reference/instancePropertiesInheritedIntoClassType.js
+++ b/tests/baselines/reference/instancePropertiesInheritedIntoClassType.js
@@ -47,7 +47,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/instanceSubtypeCheck2.js b/tests/baselines/reference/instanceSubtypeCheck2.js
index 2924ae3be05..bc3c32bfac0 100644
--- a/tests/baselines/reference/instanceSubtypeCheck2.js
+++ b/tests/baselines/reference/instanceSubtypeCheck2.js
@@ -12,7 +12,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/instanceofWithStructurallyIdenticalTypes.js b/tests/baselines/reference/instanceofWithStructurallyIdenticalTypes.js
index 125e5d8a310..e332ce97253 100644
--- a/tests/baselines/reference/instanceofWithStructurallyIdenticalTypes.js
+++ b/tests/baselines/reference/instanceofWithStructurallyIdenticalTypes.js
@@ -76,7 +76,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/instantiatedReturnTypeContravariance.js b/tests/baselines/reference/instantiatedReturnTypeContravariance.js
index c6cbd93e8bc..d53d8af6de9 100644
--- a/tests/baselines/reference/instantiatedReturnTypeContravariance.js
+++ b/tests/baselines/reference/instantiatedReturnTypeContravariance.js
@@ -35,7 +35,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/interfaceClassMerging.js b/tests/baselines/reference/interfaceClassMerging.js
index 67e99f40a37..7e2720ad1de 100644
--- a/tests/baselines/reference/interfaceClassMerging.js
+++ b/tests/baselines/reference/interfaceClassMerging.js
@@ -45,7 +45,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/interfaceClassMerging2.js b/tests/baselines/reference/interfaceClassMerging2.js
index 6a636cfebb8..cf75cbac90d 100644
--- a/tests/baselines/reference/interfaceClassMerging2.js
+++ b/tests/baselines/reference/interfaceClassMerging2.js
@@ -41,7 +41,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/interfaceExtendsClass1.js b/tests/baselines/reference/interfaceExtendsClass1.js
index e63dce8f199..be17558f77e 100644
--- a/tests/baselines/reference/interfaceExtendsClass1.js
+++ b/tests/baselines/reference/interfaceExtendsClass1.js
@@ -23,7 +23,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/interfaceExtendsClassWithPrivate1.js b/tests/baselines/reference/interfaceExtendsClassWithPrivate1.js
index 6da140d08c3..ed24a458204 100644
--- a/tests/baselines/reference/interfaceExtendsClassWithPrivate1.js
+++ b/tests/baselines/reference/interfaceExtendsClassWithPrivate1.js
@@ -32,7 +32,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/interfaceExtendsClassWithPrivate2.js b/tests/baselines/reference/interfaceExtendsClassWithPrivate2.js
index c135119dd04..fb4d2651d4a 100644
--- a/tests/baselines/reference/interfaceExtendsClassWithPrivate2.js
+++ b/tests/baselines/reference/interfaceExtendsClassWithPrivate2.js
@@ -28,7 +28,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/interfaceExtendsObjectIntersection.js b/tests/baselines/reference/interfaceExtendsObjectIntersection.js
index 6138af53977..9af8f619504 100644
--- a/tests/baselines/reference/interfaceExtendsObjectIntersection.js
+++ b/tests/baselines/reference/interfaceExtendsObjectIntersection.js
@@ -59,7 +59,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/interfaceExtendsObjectIntersectionErrors.js b/tests/baselines/reference/interfaceExtendsObjectIntersectionErrors.js
index ece951d7d97..daa8d4c552d 100644
--- a/tests/baselines/reference/interfaceExtendsObjectIntersectionErrors.js
+++ b/tests/baselines/reference/interfaceExtendsObjectIntersectionErrors.js
@@ -53,7 +53,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/interfaceImplementation8.js b/tests/baselines/reference/interfaceImplementation8.js
index f4fba428a1e..a432b82fecb 100644
--- a/tests/baselines/reference/interfaceImplementation8.js
+++ b/tests/baselines/reference/interfaceImplementation8.js
@@ -45,7 +45,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/invalidModuleWithStatementsOfEveryKind.js b/tests/baselines/reference/invalidModuleWithStatementsOfEveryKind.js
index 29eb714d366..8f0c5ad86f9 100644
--- a/tests/baselines/reference/invalidModuleWithStatementsOfEveryKind.js
+++ b/tests/baselines/reference/invalidModuleWithStatementsOfEveryKind.js
@@ -84,7 +84,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/invalidMultipleVariableDeclarations.js b/tests/baselines/reference/invalidMultipleVariableDeclarations.js
index e9cbbf2a2d2..175c4f7d4e8 100644
--- a/tests/baselines/reference/invalidMultipleVariableDeclarations.js
+++ b/tests/baselines/reference/invalidMultipleVariableDeclarations.js
@@ -58,7 +58,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/invalidReturnStatements.js b/tests/baselines/reference/invalidReturnStatements.js
index 99e75dff032..e7a1223a4c7 100644
--- a/tests/baselines/reference/invalidReturnStatements.js
+++ b/tests/baselines/reference/invalidReturnStatements.js
@@ -25,7 +25,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/isolatedModulesImportExportElision.js b/tests/baselines/reference/isolatedModulesImportExportElision.js
index e5eff5fc85a..c0777029d1e 100644
--- a/tests/baselines/reference/isolatedModulesImportExportElision.js
+++ b/tests/baselines/reference/isolatedModulesImportExportElision.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/jsDeclarationsClassExtendsVisibility.js b/tests/baselines/reference/jsDeclarationsClassExtendsVisibility.js
index a65f487a81a..50fa7dc03a7 100644
--- a/tests/baselines/reference/jsDeclarationsClassExtendsVisibility.js
+++ b/tests/baselines/reference/jsDeclarationsClassExtendsVisibility.js
@@ -25,7 +25,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/jsDeclarationsClasses.js b/tests/baselines/reference/jsDeclarationsClasses.js
index 7cf31451195..aef1dbe7e9c 100644
--- a/tests/baselines/reference/jsDeclarationsClasses.js
+++ b/tests/baselines/reference/jsDeclarationsClasses.js
@@ -200,7 +200,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/jsDeclarationsClassesErr.js b/tests/baselines/reference/jsDeclarationsClassesErr.js
index 0241e9693c6..cb8282ed749 100644
--- a/tests/baselines/reference/jsDeclarationsClassesErr.js
+++ b/tests/baselines/reference/jsDeclarationsClassesErr.js
@@ -78,7 +78,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/jsDeclarationsDefault.js b/tests/baselines/reference/jsDeclarationsDefault.js
index a7d8b248a39..8ed710b7456 100644
--- a/tests/baselines/reference/jsDeclarationsDefault.js
+++ b/tests/baselines/reference/jsDeclarationsDefault.js
@@ -71,7 +71,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/jsDeclarationsExportForms.js b/tests/baselines/reference/jsDeclarationsExportForms.js
index 00ece3a2936..e988ec51b2d 100644
--- a/tests/baselines/reference/jsDeclarationsExportForms.js
+++ b/tests/baselines/reference/jsDeclarationsExportForms.js
@@ -82,7 +82,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 Object.defineProperty(exports, "__esModule", { value: true });
 __exportStar(require("./cls"), exports);
@@ -96,7 +96,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 Object.defineProperty(exports, "__esModule", { value: true });
 __exportStar(require("./func"), exports);
diff --git a/tests/baselines/reference/jsDeclarationsExportFormsErr.js b/tests/baselines/reference/jsDeclarationsExportFormsErr.js
index 50e0e5da772..ece87800ab3 100644
--- a/tests/baselines/reference/jsDeclarationsExportFormsErr.js
+++ b/tests/baselines/reference/jsDeclarationsExportFormsErr.js
@@ -49,7 +49,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 Object.defineProperty(exports, "__esModule", { value: true });
 __exportStar(require("./cls"), exports);
diff --git a/tests/baselines/reference/jsNoImplicitAnyNoCascadingReferenceErrors.js b/tests/baselines/reference/jsNoImplicitAnyNoCascadingReferenceErrors.js
index 52933132cb4..d245b3de659 100644
--- a/tests/baselines/reference/jsNoImplicitAnyNoCascadingReferenceErrors.js
+++ b/tests/baselines/reference/jsNoImplicitAnyNoCascadingReferenceErrors.js
@@ -21,7 +21,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/jsdocTypeTagCast.js b/tests/baselines/reference/jsdocTypeTagCast.js
index 53bf465b41a..e54a5550ecb 100644
--- a/tests/baselines/reference/jsdocTypeTagCast.js
+++ b/tests/baselines/reference/jsdocTypeTagCast.js
@@ -83,7 +83,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/jsxCallbackWithDestructuring.js b/tests/baselines/reference/jsxCallbackWithDestructuring.js
index e77608c56d7..ce55e286b73 100644
--- a/tests/baselines/reference/jsxCallbackWithDestructuring.js
+++ b/tests/baselines/reference/jsxCallbackWithDestructuring.js
@@ -32,7 +32,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/jsxChildrenSingleChildConfusableWithMultipleChildrenNoError.js b/tests/baselines/reference/jsxChildrenSingleChildConfusableWithMultipleChildrenNoError.js
index 7ccea1b36ae..eb78ebd6c7c 100644
--- a/tests/baselines/reference/jsxChildrenSingleChildConfusableWithMultipleChildrenNoError.js
+++ b/tests/baselines/reference/jsxChildrenSingleChildConfusableWithMultipleChildrenNoError.js
@@ -31,7 +31,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/jsxHasLiteralType.js b/tests/baselines/reference/jsxHasLiteralType.js
index a32d8ec409b..0564341c764 100644
--- a/tests/baselines/reference/jsxHasLiteralType.js
+++ b/tests/baselines/reference/jsxHasLiteralType.js
@@ -14,7 +14,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/jsxInExtendsClause.js b/tests/baselines/reference/jsxInExtendsClause.js
index 4ccb1b2d33f..8f9c056d7eb 100644
--- a/tests/baselines/reference/jsxInExtendsClause.js
+++ b/tests/baselines/reference/jsxInExtendsClause.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/jsxViaImport.2.js b/tests/baselines/reference/jsxViaImport.2.js
index 8f68e25cf93..d2ac31a9c4d 100644
--- a/tests/baselines/reference/jsxViaImport.2.js
+++ b/tests/baselines/reference/jsxViaImport.2.js
@@ -28,7 +28,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/jsxViaImport.js b/tests/baselines/reference/jsxViaImport.js
index 28ef5ac96da..1b0baaf16b3 100644
--- a/tests/baselines/reference/jsxViaImport.js
+++ b/tests/baselines/reference/jsxViaImport.js
@@ -28,7 +28,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/keyofAndIndexedAccess.js b/tests/baselines/reference/keyofAndIndexedAccess.js
index e56ad3d5434..38283e24b5f 100644
--- a/tests/baselines/reference/keyofAndIndexedAccess.js
+++ b/tests/baselines/reference/keyofAndIndexedAccess.js
@@ -663,7 +663,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/lambdaArgCrash.js b/tests/baselines/reference/lambdaArgCrash.js
index 50f166548c1..527d14a636c 100644
--- a/tests/baselines/reference/lambdaArgCrash.js
+++ b/tests/baselines/reference/lambdaArgCrash.js
@@ -39,7 +39,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/lift.js b/tests/baselines/reference/lift.js
index d2e9d4351d3..33a434f1f92 100644
--- a/tests/baselines/reference/lift.js
+++ b/tests/baselines/reference/lift.js
@@ -22,7 +22,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/localTypes1.js b/tests/baselines/reference/localTypes1.js
index 3d28af0939c..f3b4deb1b34 100644
--- a/tests/baselines/reference/localTypes1.js
+++ b/tests/baselines/reference/localTypes1.js
@@ -145,7 +145,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/m7Bugs.js b/tests/baselines/reference/m7Bugs.js
index 442d320e5a7..e04a0ba5aaa 100644
--- a/tests/baselines/reference/m7Bugs.js
+++ b/tests/baselines/reference/m7Bugs.js
@@ -31,7 +31,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/mappedTypePartialConstraints.js b/tests/baselines/reference/mappedTypePartialConstraints.js
index ba39eb341e9..c3a5ac9b70c 100644
--- a/tests/baselines/reference/mappedTypePartialConstraints.js
+++ b/tests/baselines/reference/mappedTypePartialConstraints.js
@@ -22,7 +22,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/mergedDeclarations5.js b/tests/baselines/reference/mergedDeclarations5.js
index c54082e7490..353f16db6f0 100644
--- a/tests/baselines/reference/mergedDeclarations5.js
+++ b/tests/baselines/reference/mergedDeclarations5.js
@@ -23,7 +23,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/mergedDeclarations6.js b/tests/baselines/reference/mergedDeclarations6.js
index 258346d96a2..cfc32bd69b4 100644
--- a/tests/baselines/reference/mergedDeclarations6.js
+++ b/tests/baselines/reference/mergedDeclarations6.js
@@ -41,7 +41,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/mergedInheritedClassInterface.js b/tests/baselines/reference/mergedInheritedClassInterface.js
index 374ba758996..32186fba27e 100644
--- a/tests/baselines/reference/mergedInheritedClassInterface.js
+++ b/tests/baselines/reference/mergedInheritedClassInterface.js
@@ -51,7 +51,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/mergedInheritedMembersSatisfyAbstractBase.js b/tests/baselines/reference/mergedInheritedMembersSatisfyAbstractBase.js
index 4f6814b7524..097faa3bd7c 100644
--- a/tests/baselines/reference/mergedInheritedMembersSatisfyAbstractBase.js
+++ b/tests/baselines/reference/mergedInheritedMembersSatisfyAbstractBase.js
@@ -25,7 +25,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/mergedInterfacesWithInheritedPrivates2.js b/tests/baselines/reference/mergedInterfacesWithInheritedPrivates2.js
index 8a4084f8ddc..824ecd7f9b8 100644
--- a/tests/baselines/reference/mergedInterfacesWithInheritedPrivates2.js
+++ b/tests/baselines/reference/mergedInterfacesWithInheritedPrivates2.js
@@ -36,7 +36,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/mergedInterfacesWithInheritedPrivates3.js b/tests/baselines/reference/mergedInterfacesWithInheritedPrivates3.js
index 0e16f4a5c3d..4cba16610de 100644
--- a/tests/baselines/reference/mergedInterfacesWithInheritedPrivates3.js
+++ b/tests/baselines/reference/mergedInterfacesWithInheritedPrivates3.js
@@ -43,7 +43,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/missingPropertiesOfClassExpression.js b/tests/baselines/reference/missingPropertiesOfClassExpression.js
index 09bd027beac..ee280c88444 100644
--- a/tests/baselines/reference/missingPropertiesOfClassExpression.js
+++ b/tests/baselines/reference/missingPropertiesOfClassExpression.js
@@ -11,7 +11,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/mixinAccessModifiers.js b/tests/baselines/reference/mixinAccessModifiers.js
index 2d158f6841e..a90ebefbd08 100644
--- a/tests/baselines/reference/mixinAccessModifiers.js
+++ b/tests/baselines/reference/mixinAccessModifiers.js
@@ -137,7 +137,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/mixinClassesAnnotated.js b/tests/baselines/reference/mixinClassesAnnotated.js
index 4c5269508f4..f8ee303d1aa 100644
--- a/tests/baselines/reference/mixinClassesAnnotated.js
+++ b/tests/baselines/reference/mixinClassesAnnotated.js
@@ -71,7 +71,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/mixinClassesAnonymous.js b/tests/baselines/reference/mixinClassesAnonymous.js
index f2328d4c6d1..f06e47db7e0 100644
--- a/tests/baselines/reference/mixinClassesAnonymous.js
+++ b/tests/baselines/reference/mixinClassesAnonymous.js
@@ -70,7 +70,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/mixinClassesMembers.js b/tests/baselines/reference/mixinClassesMembers.js
index 173ee687a35..2195186d622 100644
--- a/tests/baselines/reference/mixinClassesMembers.js
+++ b/tests/baselines/reference/mixinClassesMembers.js
@@ -103,7 +103,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/mixinIntersectionIsValidbaseType.js b/tests/baselines/reference/mixinIntersectionIsValidbaseType.js
index ed02aecd53f..3895b30b690 100644
--- a/tests/baselines/reference/mixinIntersectionIsValidbaseType.js
+++ b/tests/baselines/reference/mixinIntersectionIsValidbaseType.js
@@ -33,7 +33,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/mixinPrivateAndProtected.js b/tests/baselines/reference/mixinPrivateAndProtected.js
index 601cce00e37..c94ee6c9443 100644
--- a/tests/baselines/reference/mixinPrivateAndProtected.js
+++ b/tests/baselines/reference/mixinPrivateAndProtected.js
@@ -95,7 +95,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/mixingApparentTypeOverrides.js b/tests/baselines/reference/mixingApparentTypeOverrides.js
index 74f9afc8389..d790b39ab4a 100644
--- a/tests/baselines/reference/mixingApparentTypeOverrides.js
+++ b/tests/baselines/reference/mixingApparentTypeOverrides.js
@@ -33,7 +33,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/moduleAsBaseType.js b/tests/baselines/reference/moduleAsBaseType.js
index 260735687ca..862b305409b 100644
--- a/tests/baselines/reference/moduleAsBaseType.js
+++ b/tests/baselines/reference/moduleAsBaseType.js
@@ -9,7 +9,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/moduleImportedForTypeArgumentPosition.js b/tests/baselines/reference/moduleImportedForTypeArgumentPosition.js
index b0ad743cffa..9765ef7d72d 100644
--- a/tests/baselines/reference/moduleImportedForTypeArgumentPosition.js
+++ b/tests/baselines/reference/moduleImportedForTypeArgumentPosition.js
@@ -21,7 +21,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/moduleNoneOutFile.js b/tests/baselines/reference/moduleNoneOutFile.js
index 723e266e6d3..c772cc4e351 100644
--- a/tests/baselines/reference/moduleNoneOutFile.js
+++ b/tests/baselines/reference/moduleNoneOutFile.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/moduleSameValueDuplicateExportedBindings1.js b/tests/baselines/reference/moduleSameValueDuplicateExportedBindings1.js
index 1701f2bfb54..b4527418904 100644
--- a/tests/baselines/reference/moduleSameValueDuplicateExportedBindings1.js
+++ b/tests/baselines/reference/moduleSameValueDuplicateExportedBindings1.js
@@ -24,7 +24,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./c"), exports);
@@ -38,7 +38,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./b"), exports);
diff --git a/tests/baselines/reference/moduleSameValueDuplicateExportedBindings2.js b/tests/baselines/reference/moduleSameValueDuplicateExportedBindings2.js
index a047c0b5aaf..729c69cb8b3 100644
--- a/tests/baselines/reference/moduleSameValueDuplicateExportedBindings2.js
+++ b/tests/baselines/reference/moduleSameValueDuplicateExportedBindings2.js
@@ -44,7 +44,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./b"), exports);
diff --git a/tests/baselines/reference/moduleWithStatementsOfEveryKind.js b/tests/baselines/reference/moduleWithStatementsOfEveryKind.js
index af336676867..fce46332a59 100644
--- a/tests/baselines/reference/moduleWithStatementsOfEveryKind.js
+++ b/tests/baselines/reference/moduleWithStatementsOfEveryKind.js
@@ -63,7 +63,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/multipleInheritance.js b/tests/baselines/reference/multipleInheritance.js
index b80794c1e71..ae5e7da4414 100644
--- a/tests/baselines/reference/multipleInheritance.js
+++ b/tests/baselines/reference/multipleInheritance.js
@@ -43,7 +43,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/mutuallyRecursiveGenericBaseTypes2.js b/tests/baselines/reference/mutuallyRecursiveGenericBaseTypes2.js
index 54fea7b4d53..3e1d91ca354 100644
--- a/tests/baselines/reference/mutuallyRecursiveGenericBaseTypes2.js
+++ b/tests/baselines/reference/mutuallyRecursiveGenericBaseTypes2.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/mutuallyRecursiveInference.js b/tests/baselines/reference/mutuallyRecursiveInference.js
index f43ea313001..a3d79a6623e 100644
--- a/tests/baselines/reference/mutuallyRecursiveInference.js
+++ b/tests/baselines/reference/mutuallyRecursiveInference.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/narrowingOfDottedNames.js b/tests/baselines/reference/narrowingOfDottedNames.js
index 4b4d9ada399..4cb1da7cddd 100644
--- a/tests/baselines/reference/narrowingOfDottedNames.js
+++ b/tests/baselines/reference/narrowingOfDottedNames.js
@@ -98,7 +98,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/neverReturningFunctions1.js b/tests/baselines/reference/neverReturningFunctions1.js
index 512c8205ce4..35be732c3ec 100644
--- a/tests/baselines/reference/neverReturningFunctions1.js
+++ b/tests/baselines/reference/neverReturningFunctions1.js
@@ -255,7 +255,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/newTarget.es5.js b/tests/baselines/reference/newTarget.es5.js
index 92be98d08fb..60a4f9b0ac6 100644
--- a/tests/baselines/reference/newTarget.es5.js
+++ b/tests/baselines/reference/newTarget.es5.js
@@ -37,7 +37,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/noCrashOnMixin.js b/tests/baselines/reference/noCrashOnMixin.js
index 2a72e5ba185..600d163fef4 100644
--- a/tests/baselines/reference/noCrashOnMixin.js
+++ b/tests/baselines/reference/noCrashOnMixin.js
@@ -28,7 +28,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/noImplicitAnyMissingGetAccessor.js b/tests/baselines/reference/noImplicitAnyMissingGetAccessor.js
index 6db2ef447d0..dc7db26844c 100644
--- a/tests/baselines/reference/noImplicitAnyMissingGetAccessor.js
+++ b/tests/baselines/reference/noImplicitAnyMissingGetAccessor.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/noImplicitAnyMissingSetAccessor.js b/tests/baselines/reference/noImplicitAnyMissingSetAccessor.js
index 6564d4deac4..c48e5605351 100644
--- a/tests/baselines/reference/noImplicitAnyMissingSetAccessor.js
+++ b/tests/baselines/reference/noImplicitAnyMissingSetAccessor.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/nonGenericClassExtendingGenericClassWithAny.js b/tests/baselines/reference/nonGenericClassExtendingGenericClassWithAny.js
index 93a8b21daae..6f29b44a41c 100644
--- a/tests/baselines/reference/nonGenericClassExtendingGenericClassWithAny.js
+++ b/tests/baselines/reference/nonGenericClassExtendingGenericClassWithAny.js
@@ -10,7 +10,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/numericIndexerConstrainsPropertyDeclarations2.js b/tests/baselines/reference/numericIndexerConstrainsPropertyDeclarations2.js
index 37b827cc8c4..8f60fa2a073 100644
--- a/tests/baselines/reference/numericIndexerConstrainsPropertyDeclarations2.js
+++ b/tests/baselines/reference/numericIndexerConstrainsPropertyDeclarations2.js
@@ -51,7 +51,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/numericIndexerConstraint3.js b/tests/baselines/reference/numericIndexerConstraint3.js
index f6e1a201de6..6eef60ae775 100644
--- a/tests/baselines/reference/numericIndexerConstraint3.js
+++ b/tests/baselines/reference/numericIndexerConstraint3.js
@@ -17,7 +17,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/numericIndexerConstraint4.js b/tests/baselines/reference/numericIndexerConstraint4.js
index e2cb7c58dff..74034978f4b 100644
--- a/tests/baselines/reference/numericIndexerConstraint4.js
+++ b/tests/baselines/reference/numericIndexerConstraint4.js
@@ -17,7 +17,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/numericIndexerTyping2.js b/tests/baselines/reference/numericIndexerTyping2.js
index 28af1636aec..ee3299b4170 100644
--- a/tests/baselines/reference/numericIndexerTyping2.js
+++ b/tests/baselines/reference/numericIndexerTyping2.js
@@ -17,7 +17,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/objectCreationOfElementAccessExpression.js b/tests/baselines/reference/objectCreationOfElementAccessExpression.js
index ed67113d387..8737125f6a9 100644
--- a/tests/baselines/reference/objectCreationOfElementAccessExpression.js
+++ b/tests/baselines/reference/objectCreationOfElementAccessExpression.js
@@ -60,7 +60,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/objectTypeHidingMembersOfExtendedObject.js b/tests/baselines/reference/objectTypeHidingMembersOfExtendedObject.js
index 9cdb3cf42fd..1a3ac3d04fd 100644
--- a/tests/baselines/reference/objectTypeHidingMembersOfExtendedObject.js
+++ b/tests/baselines/reference/objectTypeHidingMembersOfExtendedObject.js
@@ -59,7 +59,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/objectTypesIdentityWithNumericIndexers1.js b/tests/baselines/reference/objectTypesIdentityWithNumericIndexers1.js
index f6d5a970664..0dbf74a4009 100644
--- a/tests/baselines/reference/objectTypesIdentityWithNumericIndexers1.js
+++ b/tests/baselines/reference/objectTypesIdentityWithNumericIndexers1.js
@@ -128,7 +128,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/objectTypesIdentityWithNumericIndexers2.js b/tests/baselines/reference/objectTypesIdentityWithNumericIndexers2.js
index bbc9351a922..e64466bc8ed 100644
--- a/tests/baselines/reference/objectTypesIdentityWithNumericIndexers2.js
+++ b/tests/baselines/reference/objectTypesIdentityWithNumericIndexers2.js
@@ -131,7 +131,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/objectTypesIdentityWithNumericIndexers3.js b/tests/baselines/reference/objectTypesIdentityWithNumericIndexers3.js
index ffe0bcc558f..7456b54646f 100644
--- a/tests/baselines/reference/objectTypesIdentityWithNumericIndexers3.js
+++ b/tests/baselines/reference/objectTypesIdentityWithNumericIndexers3.js
@@ -128,7 +128,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/objectTypesIdentityWithPrivates.js b/tests/baselines/reference/objectTypesIdentityWithPrivates.js
index 3774b171204..462f1310bca 100644
--- a/tests/baselines/reference/objectTypesIdentityWithPrivates.js
+++ b/tests/baselines/reference/objectTypesIdentityWithPrivates.js
@@ -126,7 +126,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/objectTypesIdentityWithPrivates2.js b/tests/baselines/reference/objectTypesIdentityWithPrivates2.js
index e18a0096cb4..d11c6759c00 100644
--- a/tests/baselines/reference/objectTypesIdentityWithPrivates2.js
+++ b/tests/baselines/reference/objectTypesIdentityWithPrivates2.js
@@ -44,7 +44,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/objectTypesIdentityWithPrivates3.js b/tests/baselines/reference/objectTypesIdentityWithPrivates3.js
index 2fe25fdfaec..eec67a3d852 100644
--- a/tests/baselines/reference/objectTypesIdentityWithPrivates3.js
+++ b/tests/baselines/reference/objectTypesIdentityWithPrivates3.js
@@ -30,7 +30,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/objectTypesIdentityWithStringIndexers.js b/tests/baselines/reference/objectTypesIdentityWithStringIndexers.js
index 070686b15cc..4ebbb280ca7 100644
--- a/tests/baselines/reference/objectTypesIdentityWithStringIndexers.js
+++ b/tests/baselines/reference/objectTypesIdentityWithStringIndexers.js
@@ -128,7 +128,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/objectTypesIdentityWithStringIndexers2.js b/tests/baselines/reference/objectTypesIdentityWithStringIndexers2.js
index bc882c7ecd8..8e48bf2eb92 100644
--- a/tests/baselines/reference/objectTypesIdentityWithStringIndexers2.js
+++ b/tests/baselines/reference/objectTypesIdentityWithStringIndexers2.js
@@ -131,7 +131,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/optionalConstructorArgInSuper.js b/tests/baselines/reference/optionalConstructorArgInSuper.js
index 29535a3b317..8b4e559438c 100644
--- a/tests/baselines/reference/optionalConstructorArgInSuper.js
+++ b/tests/baselines/reference/optionalConstructorArgInSuper.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/optionalMethods.js b/tests/baselines/reference/optionalMethods.js
index 0a409e935eb..d8d19d1d042 100644
--- a/tests/baselines/reference/optionalMethods.js
+++ b/tests/baselines/reference/optionalMethods.js
@@ -61,7 +61,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/optionalParamArgsTest.js b/tests/baselines/reference/optionalParamArgsTest.js
index a89d3d39273..1bd62b44fd5 100644
--- a/tests/baselines/reference/optionalParamArgsTest.js
+++ b/tests/baselines/reference/optionalParamArgsTest.js
@@ -129,7 +129,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/optionalParamInOverride.js b/tests/baselines/reference/optionalParamInOverride.js
index e4d417bbc65..eb008f11401 100644
--- a/tests/baselines/reference/optionalParamInOverride.js
+++ b/tests/baselines/reference/optionalParamInOverride.js
@@ -12,7 +12,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/optionalParameterProperty.js b/tests/baselines/reference/optionalParameterProperty.js
index 80c3ce96f66..e41b5e52e68 100644
--- a/tests/baselines/reference/optionalParameterProperty.js
+++ b/tests/baselines/reference/optionalParameterProperty.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/outModuleConcatAmd.js b/tests/baselines/reference/outModuleConcatAmd.js
index d3236971298..7291796048c 100644
--- a/tests/baselines/reference/outModuleConcatAmd.js
+++ b/tests/baselines/reference/outModuleConcatAmd.js
@@ -12,7 +12,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/outModuleConcatAmd.sourcemap.txt b/tests/baselines/reference/outModuleConcatAmd.sourcemap.txt
index 819a22e9461..b2f921f549b 100644
--- a/tests/baselines/reference/outModuleConcatAmd.sourcemap.txt
+++ b/tests/baselines/reference/outModuleConcatAmd.sourcemap.txt
@@ -12,7 +12,7 @@ sourceFile:tests/cases/compiler/ref/a.ts
 >>>    var extendStatics = function (d, b) {
 >>>        extendStatics = Object.setPrototypeOf ||
 >>>            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
->>>            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+>>>            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
 >>>        return extendStatics(d, b);
 >>>    };
 >>>    return function (d, b) {
diff --git a/tests/baselines/reference/outModuleConcatSystem.js b/tests/baselines/reference/outModuleConcatSystem.js
index b566b887736..34cbdb19603 100644
--- a/tests/baselines/reference/outModuleConcatSystem.js
+++ b/tests/baselines/reference/outModuleConcatSystem.js
@@ -12,7 +12,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/outModuleConcatSystem.sourcemap.txt b/tests/baselines/reference/outModuleConcatSystem.sourcemap.txt
index 08aa323aa83..1aa4c5df345 100644
--- a/tests/baselines/reference/outModuleConcatSystem.sourcemap.txt
+++ b/tests/baselines/reference/outModuleConcatSystem.sourcemap.txt
@@ -12,7 +12,7 @@ sourceFile:tests/cases/compiler/ref/a.ts
 >>>    var extendStatics = function (d, b) {
 >>>        extendStatics = Object.setPrototypeOf ||
 >>>            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
->>>            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+>>>            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
 >>>        return extendStatics(d, b);
 >>>    };
 >>>    return function (d, b) {
diff --git a/tests/baselines/reference/outModuleTripleSlashRefs.js b/tests/baselines/reference/outModuleTripleSlashRefs.js
index 46dd9f6cc7e..4ca1321e037 100644
--- a/tests/baselines/reference/outModuleTripleSlashRefs.js
+++ b/tests/baselines/reference/outModuleTripleSlashRefs.js
@@ -34,7 +34,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/outModuleTripleSlashRefs.sourcemap.txt b/tests/baselines/reference/outModuleTripleSlashRefs.sourcemap.txt
index 41a233fc514..d2ba9f7edef 100644
--- a/tests/baselines/reference/outModuleTripleSlashRefs.sourcemap.txt
+++ b/tests/baselines/reference/outModuleTripleSlashRefs.sourcemap.txt
@@ -12,7 +12,7 @@ sourceFile:tests/cases/compiler/ref/b.ts
 >>>    var extendStatics = function (d, b) {
 >>>        extendStatics = Object.setPrototypeOf ||
 >>>            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
->>>            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+>>>            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
 >>>        return extendStatics(d, b);
 >>>    };
 >>>    return function (d, b) {
diff --git a/tests/baselines/reference/overload1.js b/tests/baselines/reference/overload1.js
index 9a14efd2ae6..70e88d8849d 100644
--- a/tests/baselines/reference/overload1.js
+++ b/tests/baselines/reference/overload1.js
@@ -44,7 +44,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/overloadOnConstConstraintChecks1.js b/tests/baselines/reference/overloadOnConstConstraintChecks1.js
index 94bb534a26d..d5c306c082d 100644
--- a/tests/baselines/reference/overloadOnConstConstraintChecks1.js
+++ b/tests/baselines/reference/overloadOnConstConstraintChecks1.js
@@ -27,7 +27,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/overloadOnConstConstraintChecks2.js b/tests/baselines/reference/overloadOnConstConstraintChecks2.js
index d38132dae57..3311562f7b4 100644
--- a/tests/baselines/reference/overloadOnConstConstraintChecks2.js
+++ b/tests/baselines/reference/overloadOnConstConstraintChecks2.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/overloadOnConstConstraintChecks3.js b/tests/baselines/reference/overloadOnConstConstraintChecks3.js
index 73bcfbb2397..c7db249a26a 100644
--- a/tests/baselines/reference/overloadOnConstConstraintChecks3.js
+++ b/tests/baselines/reference/overloadOnConstConstraintChecks3.js
@@ -17,7 +17,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/overloadOnConstConstraintChecks4.js b/tests/baselines/reference/overloadOnConstConstraintChecks4.js
index b0b8e76eacd..18618c1749f 100644
--- a/tests/baselines/reference/overloadOnConstConstraintChecks4.js
+++ b/tests/baselines/reference/overloadOnConstConstraintChecks4.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/overloadOnConstantsInvalidOverload1.js b/tests/baselines/reference/overloadOnConstantsInvalidOverload1.js
index 00768a84e42..647e9d1dc1c 100644
--- a/tests/baselines/reference/overloadOnConstantsInvalidOverload1.js
+++ b/tests/baselines/reference/overloadOnConstantsInvalidOverload1.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/overloadResolution.js b/tests/baselines/reference/overloadResolution.js
index 509483c61be..f009cfa69d0 100644
--- a/tests/baselines/reference/overloadResolution.js
+++ b/tests/baselines/reference/overloadResolution.js
@@ -99,7 +99,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/overloadResolutionClassConstructors.js b/tests/baselines/reference/overloadResolutionClassConstructors.js
index 7c852c21914..ffc75a9ab80 100644
--- a/tests/baselines/reference/overloadResolutionClassConstructors.js
+++ b/tests/baselines/reference/overloadResolutionClassConstructors.js
@@ -106,7 +106,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/overloadResolutionConstructors.js b/tests/baselines/reference/overloadResolutionConstructors.js
index 31a0309ae23..1d3b660f028 100644
--- a/tests/baselines/reference/overloadResolutionConstructors.js
+++ b/tests/baselines/reference/overloadResolutionConstructors.js
@@ -107,7 +107,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/overloadingOnConstants1.js b/tests/baselines/reference/overloadingOnConstants1.js
index 8c742c8fda2..a92a0af138e 100644
--- a/tests/baselines/reference/overloadingOnConstants1.js
+++ b/tests/baselines/reference/overloadingOnConstants1.js
@@ -30,7 +30,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/overloadingOnConstants2.js b/tests/baselines/reference/overloadingOnConstants2.js
index 978f9524a1c..3ad315bfc56 100644
--- a/tests/baselines/reference/overloadingOnConstants2.js
+++ b/tests/baselines/reference/overloadingOnConstants2.js
@@ -32,7 +32,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/overrideBaseIntersectionMethod.js b/tests/baselines/reference/overrideBaseIntersectionMethod.js
index b58c1f78674..57e76190298 100644
--- a/tests/baselines/reference/overrideBaseIntersectionMethod.js
+++ b/tests/baselines/reference/overrideBaseIntersectionMethod.js
@@ -37,7 +37,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/overridingPrivateStaticMembers.js b/tests/baselines/reference/overridingPrivateStaticMembers.js
index 9ced500351f..dfb5033af10 100644
--- a/tests/baselines/reference/overridingPrivateStaticMembers.js
+++ b/tests/baselines/reference/overridingPrivateStaticMembers.js
@@ -12,7 +12,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/parseErrorInHeritageClause1.js b/tests/baselines/reference/parseErrorInHeritageClause1.js
index d0d1331e44a..332334d3dd8 100644
--- a/tests/baselines/reference/parseErrorInHeritageClause1.js
+++ b/tests/baselines/reference/parseErrorInHeritageClause1.js
@@ -7,7 +7,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/parser509630.js b/tests/baselines/reference/parser509630.js
index c0d6d667543..a24a6449da5 100644
--- a/tests/baselines/reference/parser509630.js
+++ b/tests/baselines/reference/parser509630.js
@@ -11,7 +11,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/parserAstSpans1.js b/tests/baselines/reference/parserAstSpans1.js
index fa0cf4fa600..61198975e93 100644
--- a/tests/baselines/reference/parserAstSpans1.js
+++ b/tests/baselines/reference/parserAstSpans1.js
@@ -224,7 +224,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/parserClassDeclaration1.js b/tests/baselines/reference/parserClassDeclaration1.js
index 65c9d46babb..2c54a06a175 100644
--- a/tests/baselines/reference/parserClassDeclaration1.js
+++ b/tests/baselines/reference/parserClassDeclaration1.js
@@ -7,7 +7,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/parserClassDeclaration3.js b/tests/baselines/reference/parserClassDeclaration3.js
index 07e15c82f26..d822c79580b 100644
--- a/tests/baselines/reference/parserClassDeclaration3.js
+++ b/tests/baselines/reference/parserClassDeclaration3.js
@@ -7,7 +7,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/parserClassDeclaration4.js b/tests/baselines/reference/parserClassDeclaration4.js
index ce636f307a9..745d6a765f4 100644
--- a/tests/baselines/reference/parserClassDeclaration4.js
+++ b/tests/baselines/reference/parserClassDeclaration4.js
@@ -7,7 +7,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/parserClassDeclaration5.js b/tests/baselines/reference/parserClassDeclaration5.js
index 0d276534cf6..e87607445f0 100644
--- a/tests/baselines/reference/parserClassDeclaration5.js
+++ b/tests/baselines/reference/parserClassDeclaration5.js
@@ -7,7 +7,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/parserClassDeclaration6.js b/tests/baselines/reference/parserClassDeclaration6.js
index 89f5518c86d..a5570bc76fb 100644
--- a/tests/baselines/reference/parserClassDeclaration6.js
+++ b/tests/baselines/reference/parserClassDeclaration6.js
@@ -7,7 +7,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/parserErrorRecovery_ExtendsOrImplementsClause2.js b/tests/baselines/reference/parserErrorRecovery_ExtendsOrImplementsClause2.js
index cb35279660c..97bb668a513 100644
--- a/tests/baselines/reference/parserErrorRecovery_ExtendsOrImplementsClause2.js
+++ b/tests/baselines/reference/parserErrorRecovery_ExtendsOrImplementsClause2.js
@@ -7,7 +7,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/parserErrorRecovery_ExtendsOrImplementsClause4.js b/tests/baselines/reference/parserErrorRecovery_ExtendsOrImplementsClause4.js
index 227af5ebf4d..b5a8c4455f7 100644
--- a/tests/baselines/reference/parserErrorRecovery_ExtendsOrImplementsClause4.js
+++ b/tests/baselines/reference/parserErrorRecovery_ExtendsOrImplementsClause4.js
@@ -7,7 +7,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/parserErrorRecovery_ExtendsOrImplementsClause5.js b/tests/baselines/reference/parserErrorRecovery_ExtendsOrImplementsClause5.js
index 77ba94cd3eb..ca9cc79ac6e 100644
--- a/tests/baselines/reference/parserErrorRecovery_ExtendsOrImplementsClause5.js
+++ b/tests/baselines/reference/parserErrorRecovery_ExtendsOrImplementsClause5.js
@@ -7,7 +7,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/parserGenericsInTypeContexts1.js b/tests/baselines/reference/parserGenericsInTypeContexts1.js
index f221d429b3f..3ca8ac10ded 100644
--- a/tests/baselines/reference/parserGenericsInTypeContexts1.js
+++ b/tests/baselines/reference/parserGenericsInTypeContexts1.js
@@ -22,7 +22,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/parserGenericsInTypeContexts2.js b/tests/baselines/reference/parserGenericsInTypeContexts2.js
index 39b2d2c5e70..4631e0d03bb 100644
--- a/tests/baselines/reference/parserGenericsInTypeContexts2.js
+++ b/tests/baselines/reference/parserGenericsInTypeContexts2.js
@@ -22,7 +22,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/parserRealSource10.js b/tests/baselines/reference/parserRealSource10.js
index 968cecc30ed..bf073e5780d 100644
--- a/tests/baselines/reference/parserRealSource10.js
+++ b/tests/baselines/reference/parserRealSource10.js
@@ -462,7 +462,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/parserRealSource11.js b/tests/baselines/reference/parserRealSource11.js
index cd48bcc4fd6..11f109d234b 100644
--- a/tests/baselines/reference/parserRealSource11.js
+++ b/tests/baselines/reference/parserRealSource11.js
@@ -2371,7 +2371,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/parserharness.js b/tests/baselines/reference/parserharness.js
index 53ae2f28510..2e73e321d13 100644
--- a/tests/baselines/reference/parserharness.js
+++ b/tests/baselines/reference/parserharness.js
@@ -2100,7 +2100,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/partiallyAnnotatedFunctionInferenceError.js b/tests/baselines/reference/partiallyAnnotatedFunctionInferenceError.js
index 8412890ee19..f1e0ff9e5b7 100644
--- a/tests/baselines/reference/partiallyAnnotatedFunctionInferenceError.js
+++ b/tests/baselines/reference/partiallyAnnotatedFunctionInferenceError.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/partiallyAnnotatedFunctionInferenceWithTypeParameter.js b/tests/baselines/reference/partiallyAnnotatedFunctionInferenceWithTypeParameter.js
index 89f698cff0e..203f4a8e64a 100644
--- a/tests/baselines/reference/partiallyAnnotatedFunctionInferenceWithTypeParameter.js
+++ b/tests/baselines/reference/partiallyAnnotatedFunctionInferenceWithTypeParameter.js
@@ -39,7 +39,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/primitiveMembers.js b/tests/baselines/reference/primitiveMembers.js
index 37a92e41617..5fdcca2178a 100644
--- a/tests/baselines/reference/primitiveMembers.js
+++ b/tests/baselines/reference/primitiveMembers.js
@@ -36,7 +36,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/privacyClass.js b/tests/baselines/reference/privacyClass.js
index 7b4b63d088c..88ffb84bbab 100644
--- a/tests/baselines/reference/privacyClass.js
+++ b/tests/baselines/reference/privacyClass.js
@@ -133,7 +133,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/privacyClassExtendsClauseDeclFile.js b/tests/baselines/reference/privacyClassExtendsClauseDeclFile.js
index b07f94ea376..75d8c147897 100644
--- a/tests/baselines/reference/privacyClassExtendsClauseDeclFile.js
+++ b/tests/baselines/reference/privacyClassExtendsClauseDeclFile.js
@@ -102,7 +102,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
@@ -297,7 +297,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/privacyGloClass.js b/tests/baselines/reference/privacyGloClass.js
index 3665d45e9f3..1c293eb57e6 100644
--- a/tests/baselines/reference/privacyGloClass.js
+++ b/tests/baselines/reference/privacyGloClass.js
@@ -65,7 +65,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/privateAccessInSubclass1.js b/tests/baselines/reference/privateAccessInSubclass1.js
index 6d6edb5c6a6..c81c13f60b6 100644
--- a/tests/baselines/reference/privateAccessInSubclass1.js
+++ b/tests/baselines/reference/privateAccessInSubclass1.js
@@ -14,7 +14,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/privateInstanceMemberAccessibility.js b/tests/baselines/reference/privateInstanceMemberAccessibility.js
index ffcefc92836..95559cc6ff3 100644
--- a/tests/baselines/reference/privateInstanceMemberAccessibility.js
+++ b/tests/baselines/reference/privateInstanceMemberAccessibility.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/privateProtectedMembersAreNotAccessibleDestructuring.js b/tests/baselines/reference/privateProtectedMembersAreNotAccessibleDestructuring.js
index eb45924bda7..b4f479975e7 100644
--- a/tests/baselines/reference/privateProtectedMembersAreNotAccessibleDestructuring.js
+++ b/tests/baselines/reference/privateProtectedMembersAreNotAccessibleDestructuring.js
@@ -29,7 +29,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/privateStaticMemberAccessibility.js b/tests/baselines/reference/privateStaticMemberAccessibility.js
index 389f614e72c..1bb3f28208c 100644
--- a/tests/baselines/reference/privateStaticMemberAccessibility.js
+++ b/tests/baselines/reference/privateStaticMemberAccessibility.js
@@ -13,7 +13,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/privateStaticNotAccessibleInClodule2.js b/tests/baselines/reference/privateStaticNotAccessibleInClodule2.js
index 2d9007b9501..a788d8aea65 100644
--- a/tests/baselines/reference/privateStaticNotAccessibleInClodule2.js
+++ b/tests/baselines/reference/privateStaticNotAccessibleInClodule2.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/project/privacyCheckOnImportedModuleDeclarationsInsideModule/amd/testGlo.js b/tests/baselines/reference/project/privacyCheckOnImportedModuleDeclarationsInsideModule/amd/testGlo.js
index 345b99e5672..3c9467ae5ae 100644
--- a/tests/baselines/reference/project/privacyCheckOnImportedModuleDeclarationsInsideModule/amd/testGlo.js
+++ b/tests/baselines/reference/project/privacyCheckOnImportedModuleDeclarationsInsideModule/amd/testGlo.js
@@ -2,7 +2,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/project/privacyCheckOnImportedModuleDeclarationsInsideModule/node/testGlo.js b/tests/baselines/reference/project/privacyCheckOnImportedModuleDeclarationsInsideModule/node/testGlo.js
index 345b99e5672..3c9467ae5ae 100644
--- a/tests/baselines/reference/project/privacyCheckOnImportedModuleDeclarationsInsideModule/node/testGlo.js
+++ b/tests/baselines/reference/project/privacyCheckOnImportedModuleDeclarationsInsideModule/node/testGlo.js
@@ -2,7 +2,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/project/prologueEmit/amd/out.js b/tests/baselines/reference/project/prologueEmit/amd/out.js
index f758fc4a85f..1c47628758d 100644
--- a/tests/baselines/reference/project/prologueEmit/amd/out.js
+++ b/tests/baselines/reference/project/prologueEmit/amd/out.js
@@ -2,7 +2,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/project/prologueEmit/node/out.js b/tests/baselines/reference/project/prologueEmit/node/out.js
index f758fc4a85f..1c47628758d 100644
--- a/tests/baselines/reference/project/prologueEmit/node/out.js
+++ b/tests/baselines/reference/project/prologueEmit/node/out.js
@@ -2,7 +2,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/project/quotesInFileAndDirectoryNames/amd/m'ain.js b/tests/baselines/reference/project/quotesInFileAndDirectoryNames/amd/m'ain.js
index 351bc0f0af6..21a02daa9eb 100644
--- a/tests/baselines/reference/project/quotesInFileAndDirectoryNames/amd/m'ain.js
+++ b/tests/baselines/reference/project/quotesInFileAndDirectoryNames/amd/m'ain.js
@@ -3,7 +3,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/project/quotesInFileAndDirectoryNames/node/m'ain.js b/tests/baselines/reference/project/quotesInFileAndDirectoryNames/node/m'ain.js
index 351bc0f0af6..21a02daa9eb 100644
--- a/tests/baselines/reference/project/quotesInFileAndDirectoryNames/node/m'ain.js
+++ b/tests/baselines/reference/project/quotesInFileAndDirectoryNames/node/m'ain.js
@@ -3,7 +3,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/propertiesAndIndexers.js b/tests/baselines/reference/propertiesAndIndexers.js
index ba5ec00d539..a4ed7e688cc 100644
--- a/tests/baselines/reference/propertiesAndIndexers.js
+++ b/tests/baselines/reference/propertiesAndIndexers.js
@@ -56,7 +56,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/propertyAccess.js b/tests/baselines/reference/propertyAccess.js
index 8681c3fb404..ad0b38e07da 100644
--- a/tests/baselines/reference/propertyAccess.js
+++ b/tests/baselines/reference/propertyAccess.js
@@ -155,7 +155,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints2.js b/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints2.js
index cf5315528db..43eda51678c 100644
--- a/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints2.js
+++ b/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints2.js
@@ -87,7 +87,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints3.js b/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints3.js
index bde85a52f38..308c55b1e9f 100644
--- a/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints3.js
+++ b/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints3.js
@@ -62,7 +62,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints5.js b/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints5.js
index ea74da04fd7..2c0e09ef233 100644
--- a/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints5.js
+++ b/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints5.js
@@ -49,7 +49,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/propertyOverridesAccessors4.js b/tests/baselines/reference/propertyOverridesAccessors4.js
index 1c284e6aa49..0c990aeea01 100644
--- a/tests/baselines/reference/propertyOverridesAccessors4.js
+++ b/tests/baselines/reference/propertyOverridesAccessors4.js
@@ -13,7 +13,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/propertyOverridingPrototype.js b/tests/baselines/reference/propertyOverridingPrototype.js
index 67d70fb3c35..674e8114527 100644
--- a/tests/baselines/reference/propertyOverridingPrototype.js
+++ b/tests/baselines/reference/propertyOverridingPrototype.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedSubclass.js b/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedSubclass.js
index 78ebbbd00fb..52371f78f4e 100644
--- a/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedSubclass.js
+++ b/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedSubclass.js
@@ -42,7 +42,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedSubclass1.js b/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedSubclass1.js
index cd4a43d05e5..355ae08a85e 100644
--- a/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedSubclass1.js
+++ b/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedSubclass1.js
@@ -119,7 +119,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass.js b/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass.js
index 5809d01266d..529cc39a395 100644
--- a/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass.js
+++ b/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass.js
@@ -25,7 +25,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass2.js b/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass2.js
index 0d3d47efff3..0e605eebdbc 100644
--- a/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass2.js
+++ b/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass2.js
@@ -99,7 +99,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass3.js b/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass3.js
index e8b32190035..c987b7c6baf 100644
--- a/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass3.js
+++ b/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass3.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/protectedInstanceMemberAccessibility.js b/tests/baselines/reference/protectedInstanceMemberAccessibility.js
index a7372dfc15c..6ef90e96d64 100644
--- a/tests/baselines/reference/protectedInstanceMemberAccessibility.js
+++ b/tests/baselines/reference/protectedInstanceMemberAccessibility.js
@@ -49,7 +49,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/protectedMembers.js b/tests/baselines/reference/protectedMembers.js
index b90e487fd21..1cd339c3c6b 100644
--- a/tests/baselines/reference/protectedMembers.js
+++ b/tests/baselines/reference/protectedMembers.js
@@ -120,7 +120,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/protectedStaticClassPropertyAccessibleWithinSubclass.js b/tests/baselines/reference/protectedStaticClassPropertyAccessibleWithinSubclass.js
index 2a7bb5ecaa1..6d99965e1d8 100644
--- a/tests/baselines/reference/protectedStaticClassPropertyAccessibleWithinSubclass.js
+++ b/tests/baselines/reference/protectedStaticClassPropertyAccessibleWithinSubclass.js
@@ -48,7 +48,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/protectedStaticClassPropertyAccessibleWithinSubclass2.js b/tests/baselines/reference/protectedStaticClassPropertyAccessibleWithinSubclass2.js
index 86d5df89867..9d7cccb71b4 100644
--- a/tests/baselines/reference/protectedStaticClassPropertyAccessibleWithinSubclass2.js
+++ b/tests/baselines/reference/protectedStaticClassPropertyAccessibleWithinSubclass2.js
@@ -26,7 +26,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/qualifiedName_entity-name-resolution-does-not-affect-class-heritage.js b/tests/baselines/reference/qualifiedName_entity-name-resolution-does-not-affect-class-heritage.js
index 8d91be85bbd..28a0f20ff38 100644
--- a/tests/baselines/reference/qualifiedName_entity-name-resolution-does-not-affect-class-heritage.js
+++ b/tests/baselines/reference/qualifiedName_entity-name-resolution-does-not-affect-class-heritage.js
@@ -11,7 +11,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/reactDefaultPropsInferenceSuccess.js b/tests/baselines/reference/reactDefaultPropsInferenceSuccess.js
index a87e225a148..6628f0232b6 100644
--- a/tests/baselines/reference/reactDefaultPropsInferenceSuccess.js
+++ b/tests/baselines/reference/reactDefaultPropsInferenceSuccess.js
@@ -75,7 +75,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/reactHOCSpreadprops.js b/tests/baselines/reference/reactHOCSpreadprops.js
index 45ecbe35f68..d3a33aed92d 100644
--- a/tests/baselines/reference/reactHOCSpreadprops.js
+++ b/tests/baselines/reference/reactHOCSpreadprops.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/reactReadonlyHOCAssignabilityReal.js b/tests/baselines/reference/reactReadonlyHOCAssignabilityReal.js
index 57f6680e098..ce4b2b5a8ec 100644
--- a/tests/baselines/reference/reactReadonlyHOCAssignabilityReal.js
+++ b/tests/baselines/reference/reactReadonlyHOCAssignabilityReal.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/reactReduxLikeDeferredInferenceAllowsAssignment.js b/tests/baselines/reference/reactReduxLikeDeferredInferenceAllowsAssignment.js
index 3c2cb0e7626..1073733bd8d 100644
--- a/tests/baselines/reference/reactReduxLikeDeferredInferenceAllowsAssignment.js
+++ b/tests/baselines/reference/reactReduxLikeDeferredInferenceAllowsAssignment.js
@@ -153,7 +153,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/readonlyAssignmentInSubclassOfClassExpression.js b/tests/baselines/reference/readonlyAssignmentInSubclassOfClassExpression.js
index 9807f417017..427c85b247e 100644
--- a/tests/baselines/reference/readonlyAssignmentInSubclassOfClassExpression.js
+++ b/tests/baselines/reference/readonlyAssignmentInSubclassOfClassExpression.js
@@ -12,7 +12,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/readonlyConstructorAssignment.js b/tests/baselines/reference/readonlyConstructorAssignment.js
index 0b42900e5b2..ad0115b7c08 100644
--- a/tests/baselines/reference/readonlyConstructorAssignment.js
+++ b/tests/baselines/reference/readonlyConstructorAssignment.js
@@ -45,7 +45,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/recursiveBaseCheck3.js b/tests/baselines/reference/recursiveBaseCheck3.js
index ee8cd3f8914..c1d6657fecb 100644
--- a/tests/baselines/reference/recursiveBaseCheck3.js
+++ b/tests/baselines/reference/recursiveBaseCheck3.js
@@ -9,7 +9,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/recursiveBaseCheck4.js b/tests/baselines/reference/recursiveBaseCheck4.js
index aace4c73cb9..cac4428e20b 100644
--- a/tests/baselines/reference/recursiveBaseCheck4.js
+++ b/tests/baselines/reference/recursiveBaseCheck4.js
@@ -7,7 +7,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/recursiveBaseCheck6.js b/tests/baselines/reference/recursiveBaseCheck6.js
index b372d21c57e..2d650955399 100644
--- a/tests/baselines/reference/recursiveBaseCheck6.js
+++ b/tests/baselines/reference/recursiveBaseCheck6.js
@@ -7,7 +7,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/recursiveBaseConstructorCreation1.js b/tests/baselines/reference/recursiveBaseConstructorCreation1.js
index fb5d8b95226..33560e5f50b 100644
--- a/tests/baselines/reference/recursiveBaseConstructorCreation1.js
+++ b/tests/baselines/reference/recursiveBaseConstructorCreation1.js
@@ -11,7 +11,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/recursiveClassInstantiationsWithDefaultConstructors.js b/tests/baselines/reference/recursiveClassInstantiationsWithDefaultConstructors.js
index 31a63524f92..a5457694118 100644
--- a/tests/baselines/reference/recursiveClassInstantiationsWithDefaultConstructors.js
+++ b/tests/baselines/reference/recursiveClassInstantiationsWithDefaultConstructors.js
@@ -14,7 +14,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/recursiveClassReferenceTest.js b/tests/baselines/reference/recursiveClassReferenceTest.js
index 078959861b9..9a05a00906e 100644
--- a/tests/baselines/reference/recursiveClassReferenceTest.js
+++ b/tests/baselines/reference/recursiveClassReferenceTest.js
@@ -109,7 +109,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/recursiveClassReferenceTest.sourcemap.txt b/tests/baselines/reference/recursiveClassReferenceTest.sourcemap.txt
index bef310b69d6..fc603c7b168 100644
--- a/tests/baselines/reference/recursiveClassReferenceTest.sourcemap.txt
+++ b/tests/baselines/reference/recursiveClassReferenceTest.sourcemap.txt
@@ -30,7 +30,7 @@ sourceFile:recursiveClassReferenceTest.ts
 >>>    var extendStatics = function (d, b) {
 >>>        extendStatics = Object.setPrototypeOf ||
 >>>            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
->>>            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+>>>            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
 >>>        return extendStatics(d, b);
 >>>    };
 >>>    return function (d, b) {
diff --git a/tests/baselines/reference/recursiveComplicatedClasses.js b/tests/baselines/reference/recursiveComplicatedClasses.js
index aab96bfe740..87edb62c641 100644
--- a/tests/baselines/reference/recursiveComplicatedClasses.js
+++ b/tests/baselines/reference/recursiveComplicatedClasses.js
@@ -29,7 +29,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/recursivelySpecializedConstructorDeclaration.js b/tests/baselines/reference/recursivelySpecializedConstructorDeclaration.js
index bf5c0b583e3..608a8a0f41b 100644
--- a/tests/baselines/reference/recursivelySpecializedConstructorDeclaration.js
+++ b/tests/baselines/reference/recursivelySpecializedConstructorDeclaration.js
@@ -34,7 +34,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/reexportClassDefinition.js b/tests/baselines/reference/reexportClassDefinition.js
index 2e879f06f72..df6deeeb9e2 100644
--- a/tests/baselines/reference/reexportClassDefinition.js
+++ b/tests/baselines/reference/reexportClassDefinition.js
@@ -37,7 +37,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/reexportDefaultIsCallable.js b/tests/baselines/reference/reexportDefaultIsCallable.js
index f31897a88aa..97236d51bac 100644
--- a/tests/baselines/reference/reexportDefaultIsCallable.js
+++ b/tests/baselines/reference/reexportDefaultIsCallable.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/reexportedMissingAlias.js b/tests/baselines/reference/reexportedMissingAlias.js
index e15775ff33b..7e662140ea1 100644
--- a/tests/baselines/reference/reexportedMissingAlias.js
+++ b/tests/baselines/reference/reexportedMissingAlias.js
@@ -17,7 +17,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/resolvingClassDeclarationWhenInBaseTypeResolution.js b/tests/baselines/reference/resolvingClassDeclarationWhenInBaseTypeResolution.js
index 089ed60b9ed..2081e9d580f 100644
--- a/tests/baselines/reference/resolvingClassDeclarationWhenInBaseTypeResolution.js
+++ b/tests/baselines/reference/resolvingClassDeclarationWhenInBaseTypeResolution.js
@@ -1024,7 +1024,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/returnInConstructor1.js b/tests/baselines/reference/returnInConstructor1.js
index 282d7d2efe5..55c710cf30c 100644
--- a/tests/baselines/reference/returnInConstructor1.js
+++ b/tests/baselines/reference/returnInConstructor1.js
@@ -71,7 +71,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/returnStatements.js b/tests/baselines/reference/returnStatements.js
index cd129389843..a85bb7c7618 100644
--- a/tests/baselines/reference/returnStatements.js
+++ b/tests/baselines/reference/returnStatements.js
@@ -29,7 +29,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/returnTypePredicateIsInstantiateInContextOfTarget.js b/tests/baselines/reference/returnTypePredicateIsInstantiateInContextOfTarget.js
index 8428f81bd05..7745748a91b 100644
--- a/tests/baselines/reference/returnTypePredicateIsInstantiateInContextOfTarget.js
+++ b/tests/baselines/reference/returnTypePredicateIsInstantiateInContextOfTarget.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/scopeCheckExtendedClassInsidePublicMethod2.js b/tests/baselines/reference/scopeCheckExtendedClassInsidePublicMethod2.js
index d3d3f2a63e3..06c5fb0676c 100644
--- a/tests/baselines/reference/scopeCheckExtendedClassInsidePublicMethod2.js
+++ b/tests/baselines/reference/scopeCheckExtendedClassInsidePublicMethod2.js
@@ -13,7 +13,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/scopeCheckExtendedClassInsideStaticMethod1.js b/tests/baselines/reference/scopeCheckExtendedClassInsideStaticMethod1.js
index c0efe733fd8..2a6f0b427d7 100644
--- a/tests/baselines/reference/scopeCheckExtendedClassInsideStaticMethod1.js
+++ b/tests/baselines/reference/scopeCheckExtendedClassInsideStaticMethod1.js
@@ -13,7 +13,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/scopeTests.js b/tests/baselines/reference/scopeTests.js
index df099bf46e8..78b7f133fc8 100644
--- a/tests/baselines/reference/scopeTests.js
+++ b/tests/baselines/reference/scopeTests.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/shadowPrivateMembers.js b/tests/baselines/reference/shadowPrivateMembers.js
index e358e6b22f6..06e2c22eace 100644
--- a/tests/baselines/reference/shadowPrivateMembers.js
+++ b/tests/baselines/reference/shadowPrivateMembers.js
@@ -8,7 +8,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/sourceMapValidationClassWithDefaultConstructorAndExtendsClause.js b/tests/baselines/reference/sourceMapValidationClassWithDefaultConstructorAndExtendsClause.js
index b013c753b1e..c437b6bd6d0 100644
--- a/tests/baselines/reference/sourceMapValidationClassWithDefaultConstructorAndExtendsClause.js
+++ b/tests/baselines/reference/sourceMapValidationClassWithDefaultConstructorAndExtendsClause.js
@@ -12,7 +12,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/sourceMapValidationClassWithDefaultConstructorAndExtendsClause.sourcemap.txt b/tests/baselines/reference/sourceMapValidationClassWithDefaultConstructorAndExtendsClause.sourcemap.txt
index e986b037f28..f772f8350c0 100644
--- a/tests/baselines/reference/sourceMapValidationClassWithDefaultConstructorAndExtendsClause.sourcemap.txt
+++ b/tests/baselines/reference/sourceMapValidationClassWithDefaultConstructorAndExtendsClause.sourcemap.txt
@@ -12,7 +12,7 @@ sourceFile:sourceMapValidationClassWithDefaultConstructorAndExtendsClause.ts
 >>>    var extendStatics = function (d, b) {
 >>>        extendStatics = Object.setPrototypeOf ||
 >>>            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
->>>            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+>>>            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
 >>>        return extendStatics(d, b);
 >>>    };
 >>>    return function (d, b) {
diff --git a/tests/baselines/reference/specializedInheritedConstructors1.js b/tests/baselines/reference/specializedInheritedConstructors1.js
index f219fa5ad18..52efdcc524b 100644
--- a/tests/baselines/reference/specializedInheritedConstructors1.js
+++ b/tests/baselines/reference/specializedInheritedConstructors1.js
@@ -22,7 +22,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/specializedOverloadWithRestParameters.js b/tests/baselines/reference/specializedOverloadWithRestParameters.js
index d39993c9cb1..6a620711fa3 100644
--- a/tests/baselines/reference/specializedOverloadWithRestParameters.js
+++ b/tests/baselines/reference/specializedOverloadWithRestParameters.js
@@ -17,7 +17,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/staticFactory1.js b/tests/baselines/reference/staticFactory1.js
index d63ea13df37..aeca6de2d36 100644
--- a/tests/baselines/reference/staticFactory1.js
+++ b/tests/baselines/reference/staticFactory1.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/staticInheritance.js b/tests/baselines/reference/staticInheritance.js
index 1eb96f48cd6..97e7cd6f78b 100644
--- a/tests/baselines/reference/staticInheritance.js
+++ b/tests/baselines/reference/staticInheritance.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/staticMemberAccessOffDerivedType1.js b/tests/baselines/reference/staticMemberAccessOffDerivedType1.js
index a3dddaffb5d..366b812380d 100644
--- a/tests/baselines/reference/staticMemberAccessOffDerivedType1.js
+++ b/tests/baselines/reference/staticMemberAccessOffDerivedType1.js
@@ -14,7 +14,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/staticMismatchBecauseOfPrototype.js b/tests/baselines/reference/staticMismatchBecauseOfPrototype.js
index 4bc7b248957..ab2dddd34f3 100644
--- a/tests/baselines/reference/staticMismatchBecauseOfPrototype.js
+++ b/tests/baselines/reference/staticMismatchBecauseOfPrototype.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/staticPropSuper.js b/tests/baselines/reference/staticPropSuper.js
index b6be7f641c6..d7483b59a7c 100644
--- a/tests/baselines/reference/staticPropSuper.js
+++ b/tests/baselines/reference/staticPropSuper.js
@@ -40,7 +40,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/strictModeInConstructor.js b/tests/baselines/reference/strictModeInConstructor.js
index d7e877eda2f..aee08fb16c3 100644
--- a/tests/baselines/reference/strictModeInConstructor.js
+++ b/tests/baselines/reference/strictModeInConstructor.js
@@ -65,7 +65,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/strictModeReservedWord.js b/tests/baselines/reference/strictModeReservedWord.js
index 34c606891fb..12c0c8feaa5 100644
--- a/tests/baselines/reference/strictModeReservedWord.js
+++ b/tests/baselines/reference/strictModeReservedWord.js
@@ -32,7 +32,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/strictModeReservedWordInClassDeclaration.js b/tests/baselines/reference/strictModeReservedWordInClassDeclaration.js
index 45d08b13928..c0f397f1f14 100644
--- a/tests/baselines/reference/strictModeReservedWordInClassDeclaration.js
+++ b/tests/baselines/reference/strictModeReservedWordInClassDeclaration.js
@@ -33,7 +33,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/stringIndexerConstrainsPropertyDeclarations2.js b/tests/baselines/reference/stringIndexerConstrainsPropertyDeclarations2.js
index 900e31ab45b..82dab0a776a 100644
--- a/tests/baselines/reference/stringIndexerConstrainsPropertyDeclarations2.js
+++ b/tests/baselines/reference/stringIndexerConstrainsPropertyDeclarations2.js
@@ -45,7 +45,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/subSubClassCanAccessProtectedConstructor.js b/tests/baselines/reference/subSubClassCanAccessProtectedConstructor.js
index 11201f069e5..fb259b8ec8d 100644
--- a/tests/baselines/reference/subSubClassCanAccessProtectedConstructor.js
+++ b/tests/baselines/reference/subSubClassCanAccessProtectedConstructor.js
@@ -21,7 +21,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/subtypesOfTypeParameter.js b/tests/baselines/reference/subtypesOfTypeParameter.js
index 49b041b639e..3462785f78d 100644
--- a/tests/baselines/reference/subtypesOfTypeParameter.js
+++ b/tests/baselines/reference/subtypesOfTypeParameter.js
@@ -111,7 +111,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/subtypesOfTypeParameterWithConstraints.js b/tests/baselines/reference/subtypesOfTypeParameterWithConstraints.js
index a2d3b35680f..4ca9a95cf8b 100644
--- a/tests/baselines/reference/subtypesOfTypeParameterWithConstraints.js
+++ b/tests/baselines/reference/subtypesOfTypeParameterWithConstraints.js
@@ -173,7 +173,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/subtypesOfTypeParameterWithConstraints4.js b/tests/baselines/reference/subtypesOfTypeParameterWithConstraints4.js
index 6038e2cb175..754a842b104 100644
--- a/tests/baselines/reference/subtypesOfTypeParameterWithConstraints4.js
+++ b/tests/baselines/reference/subtypesOfTypeParameterWithConstraints4.js
@@ -84,7 +84,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/subtypesOfTypeParameterWithRecursiveConstraints.js b/tests/baselines/reference/subtypesOfTypeParameterWithRecursiveConstraints.js
index 5589dccf77e..e0d42a4a3dd 100644
--- a/tests/baselines/reference/subtypesOfTypeParameterWithRecursiveConstraints.js
+++ b/tests/baselines/reference/subtypesOfTypeParameterWithRecursiveConstraints.js
@@ -163,7 +163,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/subtypingTransitivity.js b/tests/baselines/reference/subtypingTransitivity.js
index e1a8fab95c3..60aa4c53bb4 100644
--- a/tests/baselines/reference/subtypingTransitivity.js
+++ b/tests/baselines/reference/subtypingTransitivity.js
@@ -24,7 +24,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/subtypingWithCallSignatures2.js b/tests/baselines/reference/subtypingWithCallSignatures2.js
index bd2d50d5b75..844450e2ab8 100644
--- a/tests/baselines/reference/subtypingWithCallSignatures2.js
+++ b/tests/baselines/reference/subtypingWithCallSignatures2.js
@@ -178,7 +178,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/subtypingWithCallSignatures3.js b/tests/baselines/reference/subtypingWithCallSignatures3.js
index 048bfb9dad3..a9538091b42 100644
--- a/tests/baselines/reference/subtypingWithCallSignatures3.js
+++ b/tests/baselines/reference/subtypingWithCallSignatures3.js
@@ -125,7 +125,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/subtypingWithCallSignatures4.js b/tests/baselines/reference/subtypingWithCallSignatures4.js
index 305c162088d..f32303231bc 100644
--- a/tests/baselines/reference/subtypingWithCallSignatures4.js
+++ b/tests/baselines/reference/subtypingWithCallSignatures4.js
@@ -117,7 +117,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/subtypingWithConstructSignatures2.js b/tests/baselines/reference/subtypingWithConstructSignatures2.js
index 1deee7a0bfc..148341cb4b2 100644
--- a/tests/baselines/reference/subtypingWithConstructSignatures2.js
+++ b/tests/baselines/reference/subtypingWithConstructSignatures2.js
@@ -178,7 +178,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/subtypingWithConstructSignatures3.js b/tests/baselines/reference/subtypingWithConstructSignatures3.js
index 257422621e9..941b3d02aa7 100644
--- a/tests/baselines/reference/subtypingWithConstructSignatures3.js
+++ b/tests/baselines/reference/subtypingWithConstructSignatures3.js
@@ -127,7 +127,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/subtypingWithConstructSignatures4.js b/tests/baselines/reference/subtypingWithConstructSignatures4.js
index 6489ece9b0a..2818263c909 100644
--- a/tests/baselines/reference/subtypingWithConstructSignatures4.js
+++ b/tests/baselines/reference/subtypingWithConstructSignatures4.js
@@ -117,7 +117,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/subtypingWithConstructSignatures5.js b/tests/baselines/reference/subtypingWithConstructSignatures5.js
index cbfa0fe360c..7455da5cc8b 100644
--- a/tests/baselines/reference/subtypingWithConstructSignatures5.js
+++ b/tests/baselines/reference/subtypingWithConstructSignatures5.js
@@ -55,7 +55,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/subtypingWithConstructSignatures6.js b/tests/baselines/reference/subtypingWithConstructSignatures6.js
index d8a9b66e75d..190fa3b8a4d 100644
--- a/tests/baselines/reference/subtypingWithConstructSignatures6.js
+++ b/tests/baselines/reference/subtypingWithConstructSignatures6.js
@@ -58,7 +58,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/subtypingWithNumericIndexer.js b/tests/baselines/reference/subtypingWithNumericIndexer.js
index d26d4298ac5..1953ca68587 100644
--- a/tests/baselines/reference/subtypingWithNumericIndexer.js
+++ b/tests/baselines/reference/subtypingWithNumericIndexer.js
@@ -45,7 +45,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/subtypingWithNumericIndexer3.js b/tests/baselines/reference/subtypingWithNumericIndexer3.js
index 087436392d5..ecfb15ab80c 100644
--- a/tests/baselines/reference/subtypingWithNumericIndexer3.js
+++ b/tests/baselines/reference/subtypingWithNumericIndexer3.js
@@ -49,7 +49,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/subtypingWithNumericIndexer4.js b/tests/baselines/reference/subtypingWithNumericIndexer4.js
index ec5190315f1..6d3abbdfbc1 100644
--- a/tests/baselines/reference/subtypingWithNumericIndexer4.js
+++ b/tests/baselines/reference/subtypingWithNumericIndexer4.js
@@ -33,7 +33,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/subtypingWithObjectMembers.js b/tests/baselines/reference/subtypingWithObjectMembers.js
index 3cc540a1113..66a68a40c2c 100644
--- a/tests/baselines/reference/subtypingWithObjectMembers.js
+++ b/tests/baselines/reference/subtypingWithObjectMembers.js
@@ -72,7 +72,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/subtypingWithObjectMembers4.js b/tests/baselines/reference/subtypingWithObjectMembers4.js
index 8a7a32957fe..4adc0c03abd 100644
--- a/tests/baselines/reference/subtypingWithObjectMembers4.js
+++ b/tests/baselines/reference/subtypingWithObjectMembers4.js
@@ -39,7 +39,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/subtypingWithObjectMembersAccessibility.js b/tests/baselines/reference/subtypingWithObjectMembersAccessibility.js
index 4108a979bf4..6880044ff79 100644
--- a/tests/baselines/reference/subtypingWithObjectMembersAccessibility.js
+++ b/tests/baselines/reference/subtypingWithObjectMembersAccessibility.js
@@ -39,7 +39,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/subtypingWithObjectMembersAccessibility2.js b/tests/baselines/reference/subtypingWithObjectMembersAccessibility2.js
index 97eddfb5800..d8489af13a4 100644
--- a/tests/baselines/reference/subtypingWithObjectMembersAccessibility2.js
+++ b/tests/baselines/reference/subtypingWithObjectMembersAccessibility2.js
@@ -67,7 +67,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/subtypingWithStringIndexer.js b/tests/baselines/reference/subtypingWithStringIndexer.js
index 64ccbd20430..01dcf36edf6 100644
--- a/tests/baselines/reference/subtypingWithStringIndexer.js
+++ b/tests/baselines/reference/subtypingWithStringIndexer.js
@@ -46,7 +46,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/subtypingWithStringIndexer3.js b/tests/baselines/reference/subtypingWithStringIndexer3.js
index ddcdd02b1bb..1260fec1bae 100644
--- a/tests/baselines/reference/subtypingWithStringIndexer3.js
+++ b/tests/baselines/reference/subtypingWithStringIndexer3.js
@@ -49,7 +49,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/subtypingWithStringIndexer4.js b/tests/baselines/reference/subtypingWithStringIndexer4.js
index 37472f84466..da3a7337a2b 100644
--- a/tests/baselines/reference/subtypingWithStringIndexer4.js
+++ b/tests/baselines/reference/subtypingWithStringIndexer4.js
@@ -33,7 +33,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/super.js b/tests/baselines/reference/super.js
index 21431891f03..36d82ecc446 100644
--- a/tests/baselines/reference/super.js
+++ b/tests/baselines/reference/super.js
@@ -42,7 +42,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/super1.js b/tests/baselines/reference/super1.js
index 90db9eac32d..c82519d62a4 100644
--- a/tests/baselines/reference/super1.js
+++ b/tests/baselines/reference/super1.js
@@ -71,7 +71,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/super2.js b/tests/baselines/reference/super2.js
index e2de1c65f69..c07a451d2eb 100644
--- a/tests/baselines/reference/super2.js
+++ b/tests/baselines/reference/super2.js
@@ -55,7 +55,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superAccess.js b/tests/baselines/reference/superAccess.js
index beb9303aef7..f211171f2e3 100644
--- a/tests/baselines/reference/superAccess.js
+++ b/tests/baselines/reference/superAccess.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superAccess2.js b/tests/baselines/reference/superAccess2.js
index 468f6594188..8823e0bfe65 100644
--- a/tests/baselines/reference/superAccess2.js
+++ b/tests/baselines/reference/superAccess2.js
@@ -29,7 +29,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superAccessCastedCall.js b/tests/baselines/reference/superAccessCastedCall.js
index f88b0c92a0f..50e72589aff 100644
--- a/tests/baselines/reference/superAccessCastedCall.js
+++ b/tests/baselines/reference/superAccessCastedCall.js
@@ -25,7 +25,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superAccessInFatArrow1.js b/tests/baselines/reference/superAccessInFatArrow1.js
index c04de1b20e1..5529b491177 100644
--- a/tests/baselines/reference/superAccessInFatArrow1.js
+++ b/tests/baselines/reference/superAccessInFatArrow1.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallArgsMustMatch.js b/tests/baselines/reference/superCallArgsMustMatch.js
index 9f4b848f31f..ce9b133b3af 100644
--- a/tests/baselines/reference/superCallArgsMustMatch.js
+++ b/tests/baselines/reference/superCallArgsMustMatch.js
@@ -30,7 +30,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallAssignResult.js b/tests/baselines/reference/superCallAssignResult.js
index 1e71a043449..1ce3b984ada 100644
--- a/tests/baselines/reference/superCallAssignResult.js
+++ b/tests/baselines/reference/superCallAssignResult.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallBeforeThisAccessing1.js b/tests/baselines/reference/superCallBeforeThisAccessing1.js
index d31f3a11bb9..fcf151fdb48 100644
--- a/tests/baselines/reference/superCallBeforeThisAccessing1.js
+++ b/tests/baselines/reference/superCallBeforeThisAccessing1.js
@@ -21,7 +21,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallBeforeThisAccessing2.js b/tests/baselines/reference/superCallBeforeThisAccessing2.js
index 597f53f47cb..14b71702e63 100644
--- a/tests/baselines/reference/superCallBeforeThisAccessing2.js
+++ b/tests/baselines/reference/superCallBeforeThisAccessing2.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallBeforeThisAccessing3.js b/tests/baselines/reference/superCallBeforeThisAccessing3.js
index 9a81390755e..d7831e1cfef 100644
--- a/tests/baselines/reference/superCallBeforeThisAccessing3.js
+++ b/tests/baselines/reference/superCallBeforeThisAccessing3.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallBeforeThisAccessing4.js b/tests/baselines/reference/superCallBeforeThisAccessing4.js
index 703db9d917f..b4f9f29e47a 100644
--- a/tests/baselines/reference/superCallBeforeThisAccessing4.js
+++ b/tests/baselines/reference/superCallBeforeThisAccessing4.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallBeforeThisAccessing5.js b/tests/baselines/reference/superCallBeforeThisAccessing5.js
index 9a2ba0ff0f7..d0e3b1ebbbc 100644
--- a/tests/baselines/reference/superCallBeforeThisAccessing5.js
+++ b/tests/baselines/reference/superCallBeforeThisAccessing5.js
@@ -12,7 +12,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallBeforeThisAccessing6.js b/tests/baselines/reference/superCallBeforeThisAccessing6.js
index b86502f7a1d..d651b4ea8d5 100644
--- a/tests/baselines/reference/superCallBeforeThisAccessing6.js
+++ b/tests/baselines/reference/superCallBeforeThisAccessing6.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallBeforeThisAccessing7.js b/tests/baselines/reference/superCallBeforeThisAccessing7.js
index d3f62d89012..699cc07c2a7 100644
--- a/tests/baselines/reference/superCallBeforeThisAccessing7.js
+++ b/tests/baselines/reference/superCallBeforeThisAccessing7.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallBeforeThisAccessing8.js b/tests/baselines/reference/superCallBeforeThisAccessing8.js
index f2880d43913..acc057e63d4 100644
--- a/tests/baselines/reference/superCallBeforeThisAccessing8.js
+++ b/tests/baselines/reference/superCallBeforeThisAccessing8.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallFromClassThatDerivesFromGenericType1.js b/tests/baselines/reference/superCallFromClassThatDerivesFromGenericType1.js
index b123b279dd8..70ca37d5e36 100644
--- a/tests/baselines/reference/superCallFromClassThatDerivesFromGenericType1.js
+++ b/tests/baselines/reference/superCallFromClassThatDerivesFromGenericType1.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallFromClassThatDerivesFromGenericType2.js b/tests/baselines/reference/superCallFromClassThatDerivesFromGenericType2.js
index f4fc6dc4286..40cac8fe743 100644
--- a/tests/baselines/reference/superCallFromClassThatDerivesFromGenericType2.js
+++ b/tests/baselines/reference/superCallFromClassThatDerivesFromGenericType2.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallFromClassThatDerivesFromGenericTypeButWithIncorrectNumberOfTypeArguments1.js b/tests/baselines/reference/superCallFromClassThatDerivesFromGenericTypeButWithIncorrectNumberOfTypeArguments1.js
index 2457c4f01ee..7f40d949c5b 100644
--- a/tests/baselines/reference/superCallFromClassThatDerivesFromGenericTypeButWithIncorrectNumberOfTypeArguments1.js
+++ b/tests/baselines/reference/superCallFromClassThatDerivesFromGenericTypeButWithIncorrectNumberOfTypeArguments1.js
@@ -14,7 +14,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallFromClassThatDerivesFromGenericTypeButWithNoTypeArguments1.js b/tests/baselines/reference/superCallFromClassThatDerivesFromGenericTypeButWithNoTypeArguments1.js
index 016dc25a7af..84fda9707a9 100644
--- a/tests/baselines/reference/superCallFromClassThatDerivesFromGenericTypeButWithNoTypeArguments1.js
+++ b/tests/baselines/reference/superCallFromClassThatDerivesFromGenericTypeButWithNoTypeArguments1.js
@@ -14,7 +14,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallFromClassThatDerivesNonGenericTypeButWithTypeArguments1.js b/tests/baselines/reference/superCallFromClassThatDerivesNonGenericTypeButWithTypeArguments1.js
index 6d4cd18013a..1794f99377f 100644
--- a/tests/baselines/reference/superCallFromClassThatDerivesNonGenericTypeButWithTypeArguments1.js
+++ b/tests/baselines/reference/superCallFromClassThatDerivesNonGenericTypeButWithTypeArguments1.js
@@ -14,7 +14,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallInNonStaticMethod.js b/tests/baselines/reference/superCallInNonStaticMethod.js
index 30a3381bfec..13126b4bf79 100644
--- a/tests/baselines/reference/superCallInNonStaticMethod.js
+++ b/tests/baselines/reference/superCallInNonStaticMethod.js
@@ -55,7 +55,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallInStaticMethod.js b/tests/baselines/reference/superCallInStaticMethod.js
index 17d768460ca..c92de33de96 100644
--- a/tests/baselines/reference/superCallInStaticMethod.js
+++ b/tests/baselines/reference/superCallInStaticMethod.js
@@ -51,7 +51,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallInsideClassDeclaration.js b/tests/baselines/reference/superCallInsideClassDeclaration.js
index 87caacf123f..117b632796a 100644
--- a/tests/baselines/reference/superCallInsideClassDeclaration.js
+++ b/tests/baselines/reference/superCallInsideClassDeclaration.js
@@ -21,7 +21,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallInsideClassExpression.js b/tests/baselines/reference/superCallInsideClassExpression.js
index 52a96213326..2b372ae0c10 100644
--- a/tests/baselines/reference/superCallInsideClassExpression.js
+++ b/tests/baselines/reference/superCallInsideClassExpression.js
@@ -21,7 +21,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallInsideObjectLiteralExpression.js b/tests/baselines/reference/superCallInsideObjectLiteralExpression.js
index 12da3b03199..1c9d6df2d05 100644
--- a/tests/baselines/reference/superCallInsideObjectLiteralExpression.js
+++ b/tests/baselines/reference/superCallInsideObjectLiteralExpression.js
@@ -17,7 +17,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallOutsideConstructor.js b/tests/baselines/reference/superCallOutsideConstructor.js
index ed780e5e522..824cf40b25c 100644
--- a/tests/baselines/reference/superCallOutsideConstructor.js
+++ b/tests/baselines/reference/superCallOutsideConstructor.js
@@ -27,7 +27,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallParameterContextualTyping1.js b/tests/baselines/reference/superCallParameterContextualTyping1.js
index 78f37bc1000..2e8ace7f081 100644
--- a/tests/baselines/reference/superCallParameterContextualTyping1.js
+++ b/tests/baselines/reference/superCallParameterContextualTyping1.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallParameterContextualTyping2.js b/tests/baselines/reference/superCallParameterContextualTyping2.js
index 6051c6398b3..cc34cebdc03 100644
--- a/tests/baselines/reference/superCallParameterContextualTyping2.js
+++ b/tests/baselines/reference/superCallParameterContextualTyping2.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallParameterContextualTyping3.js b/tests/baselines/reference/superCallParameterContextualTyping3.js
index 94518aec56f..f90b45a7522 100644
--- a/tests/baselines/reference/superCallParameterContextualTyping3.js
+++ b/tests/baselines/reference/superCallParameterContextualTyping3.js
@@ -36,7 +36,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallWithCommentEmit01.js b/tests/baselines/reference/superCallWithCommentEmit01.js
index 2cb12c0ecc2..6dde450469e 100644
--- a/tests/baselines/reference/superCallWithCommentEmit01.js
+++ b/tests/baselines/reference/superCallWithCommentEmit01.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallWithMissingBaseClass.js b/tests/baselines/reference/superCallWithMissingBaseClass.js
index 07d6860e20c..9ef264bf034 100644
--- a/tests/baselines/reference/superCallWithMissingBaseClass.js
+++ b/tests/baselines/reference/superCallWithMissingBaseClass.js
@@ -14,7 +14,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCalls.js b/tests/baselines/reference/superCalls.js
index 3447e4de698..458c4de1b3d 100644
--- a/tests/baselines/reference/superCalls.js
+++ b/tests/baselines/reference/superCalls.js
@@ -35,7 +35,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superCallsInConstructor.js b/tests/baselines/reference/superCallsInConstructor.js
index 46db033c66b..357de2d96b3 100644
--- a/tests/baselines/reference/superCallsInConstructor.js
+++ b/tests/baselines/reference/superCallsInConstructor.js
@@ -25,7 +25,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superElementAccess.js b/tests/baselines/reference/superElementAccess.js
index e7b390e0d05..63aa5ede03d 100644
--- a/tests/baselines/reference/superElementAccess.js
+++ b/tests/baselines/reference/superElementAccess.js
@@ -40,7 +40,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superErrors.js b/tests/baselines/reference/superErrors.js
index 35673eaa133..181cb9c61b7 100644
--- a/tests/baselines/reference/superErrors.js
+++ b/tests/baselines/reference/superErrors.js
@@ -56,7 +56,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superHasMethodsFromMergedInterface.js b/tests/baselines/reference/superHasMethodsFromMergedInterface.js
index 5d90f38aed6..f0d96d899a2 100644
--- a/tests/baselines/reference/superHasMethodsFromMergedInterface.js
+++ b/tests/baselines/reference/superHasMethodsFromMergedInterface.js
@@ -13,7 +13,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superInCatchBlock1.js b/tests/baselines/reference/superInCatchBlock1.js
index 85395af19df..73652f84f75 100644
--- a/tests/baselines/reference/superInCatchBlock1.js
+++ b/tests/baselines/reference/superInCatchBlock1.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superInConstructorParam1.js b/tests/baselines/reference/superInConstructorParam1.js
index cba46b1f92a..44cb54143e6 100644
--- a/tests/baselines/reference/superInConstructorParam1.js
+++ b/tests/baselines/reference/superInConstructorParam1.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superInLambdas.js b/tests/baselines/reference/superInLambdas.js
index 36ac400184f..d9661def121 100644
--- a/tests/baselines/reference/superInLambdas.js
+++ b/tests/baselines/reference/superInLambdas.js
@@ -72,7 +72,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superInObjectLiterals_ES5.js b/tests/baselines/reference/superInObjectLiterals_ES5.js
index 05c6ec1225a..c6d89398599 100644
--- a/tests/baselines/reference/superInObjectLiterals_ES5.js
+++ b/tests/baselines/reference/superInObjectLiterals_ES5.js
@@ -64,7 +64,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superNewCall1.js b/tests/baselines/reference/superNewCall1.js
index 6842c574142..7021548172f 100644
--- a/tests/baselines/reference/superNewCall1.js
+++ b/tests/baselines/reference/superNewCall1.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superNoModifiersCrash.js b/tests/baselines/reference/superNoModifiersCrash.js
index b00bd719280..d176cdaf462 100644
--- a/tests/baselines/reference/superNoModifiersCrash.js
+++ b/tests/baselines/reference/superNoModifiersCrash.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superPropertyAccess.js b/tests/baselines/reference/superPropertyAccess.js
index 76a57469585..d0fd8444bd2 100644
--- a/tests/baselines/reference/superPropertyAccess.js
+++ b/tests/baselines/reference/superPropertyAccess.js
@@ -40,7 +40,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superPropertyAccess1.js b/tests/baselines/reference/superPropertyAccess1.js
index a3590965d08..34ebdc83eac 100644
--- a/tests/baselines/reference/superPropertyAccess1.js
+++ b/tests/baselines/reference/superPropertyAccess1.js
@@ -32,7 +32,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superPropertyAccess2.js b/tests/baselines/reference/superPropertyAccess2.js
index 602ed093115..0257a01258b 100644
--- a/tests/baselines/reference/superPropertyAccess2.js
+++ b/tests/baselines/reference/superPropertyAccess2.js
@@ -32,7 +32,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superPropertyAccessInComputedPropertiesOfNestedType_ES5.js b/tests/baselines/reference/superPropertyAccessInComputedPropertiesOfNestedType_ES5.js
index 0d20e9d9beb..6f6e5793496 100644
--- a/tests/baselines/reference/superPropertyAccessInComputedPropertiesOfNestedType_ES5.js
+++ b/tests/baselines/reference/superPropertyAccessInComputedPropertiesOfNestedType_ES5.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superPropertyAccessInSuperCall01.js b/tests/baselines/reference/superPropertyAccessInSuperCall01.js
index 86d3fc872bf..11843b8da5b 100644
--- a/tests/baselines/reference/superPropertyAccessInSuperCall01.js
+++ b/tests/baselines/reference/superPropertyAccessInSuperCall01.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superPropertyAccessNoError.js b/tests/baselines/reference/superPropertyAccessNoError.js
index faa486ef7c0..ac0edb7b7a3 100644
--- a/tests/baselines/reference/superPropertyAccessNoError.js
+++ b/tests/baselines/reference/superPropertyAccessNoError.js
@@ -81,7 +81,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superPropertyAccess_ES5.js b/tests/baselines/reference/superPropertyAccess_ES5.js
index a6607a13b56..598ae25fcd8 100644
--- a/tests/baselines/reference/superPropertyAccess_ES5.js
+++ b/tests/baselines/reference/superPropertyAccess_ES5.js
@@ -33,7 +33,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superPropertyElementNoUnusedLexicalThisCapture.js b/tests/baselines/reference/superPropertyElementNoUnusedLexicalThisCapture.js
index 061c03d4308..1567d5ca95f 100644
--- a/tests/baselines/reference/superPropertyElementNoUnusedLexicalThisCapture.js
+++ b/tests/baselines/reference/superPropertyElementNoUnusedLexicalThisCapture.js
@@ -22,7 +22,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superPropertyInConstructorBeforeSuperCall.js b/tests/baselines/reference/superPropertyInConstructorBeforeSuperCall.js
index 4e9445cea40..8cddd321e66 100644
--- a/tests/baselines/reference/superPropertyInConstructorBeforeSuperCall.js
+++ b/tests/baselines/reference/superPropertyInConstructorBeforeSuperCall.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superSymbolIndexedAccess5.js b/tests/baselines/reference/superSymbolIndexedAccess5.js
index 2a932b4e69e..8d2b844f034 100644
--- a/tests/baselines/reference/superSymbolIndexedAccess5.js
+++ b/tests/baselines/reference/superSymbolIndexedAccess5.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superSymbolIndexedAccess6.js b/tests/baselines/reference/superSymbolIndexedAccess6.js
index f26d4e75b5c..4cf2b335aeb 100644
--- a/tests/baselines/reference/superSymbolIndexedAccess6.js
+++ b/tests/baselines/reference/superSymbolIndexedAccess6.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superWithGenericSpecialization.js b/tests/baselines/reference/superWithGenericSpecialization.js
index 1e92d132eaa..28f44e12e6d 100644
--- a/tests/baselines/reference/superWithGenericSpecialization.js
+++ b/tests/baselines/reference/superWithGenericSpecialization.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superWithGenerics.js b/tests/baselines/reference/superWithGenerics.js
index 1a5827122eb..5a2f276ffd2 100644
--- a/tests/baselines/reference/superWithGenerics.js
+++ b/tests/baselines/reference/superWithGenerics.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superWithTypeArgument.js b/tests/baselines/reference/superWithTypeArgument.js
index aa2e41751e0..95dadd00a6a 100644
--- a/tests/baselines/reference/superWithTypeArgument.js
+++ b/tests/baselines/reference/superWithTypeArgument.js
@@ -14,7 +14,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superWithTypeArgument2.js b/tests/baselines/reference/superWithTypeArgument2.js
index 33d6ef13532..decb8f33271 100644
--- a/tests/baselines/reference/superWithTypeArgument2.js
+++ b/tests/baselines/reference/superWithTypeArgument2.js
@@ -14,7 +14,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/superWithTypeArgument3.js b/tests/baselines/reference/superWithTypeArgument3.js
index 940dda49cb7..7e9c9814afd 100644
--- a/tests/baselines/reference/superWithTypeArgument3.js
+++ b/tests/baselines/reference/superWithTypeArgument3.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/super_inside-object-literal-getters-and-setters.js b/tests/baselines/reference/super_inside-object-literal-getters-and-setters.js
index e45de8de606..ac395100f5e 100644
--- a/tests/baselines/reference/super_inside-object-literal-getters-and-setters.js
+++ b/tests/baselines/reference/super_inside-object-literal-getters-and-setters.js
@@ -32,7 +32,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/switchStatements.js b/tests/baselines/reference/switchStatements.js
index 0491ea02c9c..f0a5a97b9a5 100644
--- a/tests/baselines/reference/switchStatements.js
+++ b/tests/baselines/reference/switchStatements.js
@@ -60,7 +60,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/symbolLinkDeclarationEmitModuleNames.js b/tests/baselines/reference/symbolLinkDeclarationEmitModuleNames.js
index 314a8f2a9f5..1dceebaf2db 100644
--- a/tests/baselines/reference/symbolLinkDeclarationEmitModuleNames.js
+++ b/tests/baselines/reference/symbolLinkDeclarationEmitModuleNames.js
@@ -49,7 +49,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./src/bindingkey"), exports);
diff --git a/tests/baselines/reference/systemModuleWithSuperClass.js b/tests/baselines/reference/systemModuleWithSuperClass.js
index 59be406cc2f..7c2abe79b04 100644
--- a/tests/baselines/reference/systemModuleWithSuperClass.js
+++ b/tests/baselines/reference/systemModuleWithSuperClass.js
@@ -35,7 +35,7 @@ System.register(["./foo"], function (exports_1, context_1) {
         var extendStatics = function (d, b) {
             extendStatics = Object.setPrototypeOf ||
                 ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-                function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+                function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
             return extendStatics(d, b);
         };
         return function (d, b) {
diff --git a/tests/baselines/reference/targetTypeBaseCalls.js b/tests/baselines/reference/targetTypeBaseCalls.js
index d52c59ecc1c..d769700b1f3 100644
--- a/tests/baselines/reference/targetTypeBaseCalls.js
+++ b/tests/baselines/reference/targetTypeBaseCalls.js
@@ -23,7 +23,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/thisConditionalOnMethodReturnOfGenericInstance.js b/tests/baselines/reference/thisConditionalOnMethodReturnOfGenericInstance.js
index c903864eb67..878edea580f 100644
--- a/tests/baselines/reference/thisConditionalOnMethodReturnOfGenericInstance.js
+++ b/tests/baselines/reference/thisConditionalOnMethodReturnOfGenericInstance.js
@@ -24,7 +24,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/thisInInvalidContexts.js b/tests/baselines/reference/thisInInvalidContexts.js
index 71c0a408c45..62f2f4efa6e 100644
--- a/tests/baselines/reference/thisInInvalidContexts.js
+++ b/tests/baselines/reference/thisInInvalidContexts.js
@@ -53,7 +53,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/thisInInvalidContextsExternalModule.js b/tests/baselines/reference/thisInInvalidContextsExternalModule.js
index e295c49074b..4b8a8f20463 100644
--- a/tests/baselines/reference/thisInInvalidContextsExternalModule.js
+++ b/tests/baselines/reference/thisInInvalidContextsExternalModule.js
@@ -54,7 +54,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/thisInSuperCall.js b/tests/baselines/reference/thisInSuperCall.js
index cd289bb7ea9..de34b7fa073 100644
--- a/tests/baselines/reference/thisInSuperCall.js
+++ b/tests/baselines/reference/thisInSuperCall.js
@@ -27,7 +27,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/thisInSuperCall1.js b/tests/baselines/reference/thisInSuperCall1.js
index 63d111224d8..4138ede129b 100644
--- a/tests/baselines/reference/thisInSuperCall1.js
+++ b/tests/baselines/reference/thisInSuperCall1.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/thisInSuperCall2.js b/tests/baselines/reference/thisInSuperCall2.js
index 095a6c647f9..2a79507438e 100644
--- a/tests/baselines/reference/thisInSuperCall2.js
+++ b/tests/baselines/reference/thisInSuperCall2.js
@@ -24,7 +24,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/thisInSuperCall3.js b/tests/baselines/reference/thisInSuperCall3.js
index 7fd85c47daa..b70f1e0009b 100644
--- a/tests/baselines/reference/thisInSuperCall3.js
+++ b/tests/baselines/reference/thisInSuperCall3.js
@@ -17,7 +17,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/thisIndexOnExistingReadonlyFieldIsNotNever.js b/tests/baselines/reference/thisIndexOnExistingReadonlyFieldIsNotNever.js
index 4789d0c8022..1be3c24672a 100644
--- a/tests/baselines/reference/thisIndexOnExistingReadonlyFieldIsNotNever.js
+++ b/tests/baselines/reference/thisIndexOnExistingReadonlyFieldIsNotNever.js
@@ -28,7 +28,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/thisTypeInFunctions.js b/tests/baselines/reference/thisTypeInFunctions.js
index 3c1dea3fd51..eef93e761d0 100644
--- a/tests/baselines/reference/thisTypeInFunctions.js
+++ b/tests/baselines/reference/thisTypeInFunctions.js
@@ -199,7 +199,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/thisTypeInFunctions3.js b/tests/baselines/reference/thisTypeInFunctions3.js
index 2f6ff07abcd..ec773e418b8 100644
--- a/tests/baselines/reference/thisTypeInFunctions3.js
+++ b/tests/baselines/reference/thisTypeInFunctions3.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/transformApi/transformsCorrectly.transformAddCommentToImport.js b/tests/baselines/reference/transformApi/transformsCorrectly.transformAddCommentToImport.js
index 22bf3831e26..56aa1e689fc 100644
--- a/tests/baselines/reference/transformApi/transformsCorrectly.transformAddCommentToImport.js
+++ b/tests/baselines/reference/transformApi/transformsCorrectly.transformAddCommentToImport.js
@@ -7,7 +7,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 Object.defineProperty(exports, "__esModule", { value: true });
 /*comment*/
diff --git a/tests/baselines/reference/tsbuild/sample1/incremental-declaration-changes/when-esModuleInterop-option-changes.js b/tests/baselines/reference/tsbuild/sample1/incremental-declaration-changes/when-esModuleInterop-option-changes.js
index 54342b38770..5aa9030d703 100644
--- a/tests/baselines/reference/tsbuild/sample1/incremental-declaration-changes/when-esModuleInterop-option-changes.js
+++ b/tests/baselines/reference/tsbuild/sample1/incremental-declaration-changes/when-esModuleInterop-option-changes.js
@@ -34,7 +34,7 @@ var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;
     var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    if (mod != null) for (var k in mod) if (Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
     __setModuleDefault(result, mod);
     return result;
 };
diff --git a/tests/baselines/reference/tsc/declarationEmit/initial-build/when-pkg-references-sibling-package-through-indirect-symlink.js b/tests/baselines/reference/tsc/declarationEmit/initial-build/when-pkg-references-sibling-package-through-indirect-symlink.js
index 772a0eb9664..bf353390c59 100644
--- a/tests/baselines/reference/tsc/declarationEmit/initial-build/when-pkg-references-sibling-package-through-indirect-symlink.js
+++ b/tests/baselines/reference/tsc/declarationEmit/initial-build/when-pkg-references-sibling-package-through-indirect-symlink.js
@@ -25,7 +25,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 Object.defineProperty(exports, "__esModule", { value: true });
 __exportStar(require("./keys"), exports);
diff --git a/tests/baselines/reference/tscWatch/emitAndErrorUpdates/assumeChangesOnlyAffectDirectDependencies/updates-errors-when-file-transitively-exported-file-changes/when-there-are-circular-import-and-exports.js b/tests/baselines/reference/tscWatch/emitAndErrorUpdates/assumeChangesOnlyAffectDirectDependencies/updates-errors-when-file-transitively-exported-file-changes/when-there-are-circular-import-and-exports.js
index 6a340137c85..0b92afee177 100644
--- a/tests/baselines/reference/tscWatch/emitAndErrorUpdates/assumeChangesOnlyAffectDirectDependencies/updates-errors-when-file-transitively-exported-file-changes/when-there-are-circular-import-and-exports.js
+++ b/tests/baselines/reference/tscWatch/emitAndErrorUpdates/assumeChangesOnlyAffectDirectDependencies/updates-errors-when-file-transitively-exported-file-changes/when-there-are-circular-import-and-exports.js
@@ -107,7 +107,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./data"), exports);
diff --git a/tests/baselines/reference/tscWatch/emitAndErrorUpdates/assumeChangesOnlyAffectDirectDependencies/updates-errors-when-file-transitively-exported-file-changes/when-there-are-no-circular-import-and-exports.js b/tests/baselines/reference/tscWatch/emitAndErrorUpdates/assumeChangesOnlyAffectDirectDependencies/updates-errors-when-file-transitively-exported-file-changes/when-there-are-no-circular-import-and-exports.js
index eb746ee2216..dcbda75755a 100644
--- a/tests/baselines/reference/tscWatch/emitAndErrorUpdates/assumeChangesOnlyAffectDirectDependencies/updates-errors-when-file-transitively-exported-file-changes/when-there-are-no-circular-import-and-exports.js
+++ b/tests/baselines/reference/tscWatch/emitAndErrorUpdates/assumeChangesOnlyAffectDirectDependencies/updates-errors-when-file-transitively-exported-file-changes/when-there-are-no-circular-import-and-exports.js
@@ -90,7 +90,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./data"), exports);
diff --git a/tests/baselines/reference/tscWatch/emitAndErrorUpdates/assumeChangesOnlyAffectDirectDependenciesAndD/updates-errors-when-file-transitively-exported-file-changes/when-there-are-circular-import-and-exports.js b/tests/baselines/reference/tscWatch/emitAndErrorUpdates/assumeChangesOnlyAffectDirectDependenciesAndD/updates-errors-when-file-transitively-exported-file-changes/when-there-are-circular-import-and-exports.js
index 7a5b2394837..574c089cd05 100644
--- a/tests/baselines/reference/tscWatch/emitAndErrorUpdates/assumeChangesOnlyAffectDirectDependenciesAndD/updates-errors-when-file-transitively-exported-file-changes/when-there-are-circular-import-and-exports.js
+++ b/tests/baselines/reference/tscWatch/emitAndErrorUpdates/assumeChangesOnlyAffectDirectDependenciesAndD/updates-errors-when-file-transitively-exported-file-changes/when-there-are-circular-import-and-exports.js
@@ -137,7 +137,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./data"), exports);
diff --git a/tests/baselines/reference/tscWatch/emitAndErrorUpdates/assumeChangesOnlyAffectDirectDependenciesAndD/updates-errors-when-file-transitively-exported-file-changes/when-there-are-no-circular-import-and-exports.js b/tests/baselines/reference/tscWatch/emitAndErrorUpdates/assumeChangesOnlyAffectDirectDependenciesAndD/updates-errors-when-file-transitively-exported-file-changes/when-there-are-no-circular-import-and-exports.js
index d4e444bc036..068589c1085 100644
--- a/tests/baselines/reference/tscWatch/emitAndErrorUpdates/assumeChangesOnlyAffectDirectDependenciesAndD/updates-errors-when-file-transitively-exported-file-changes/when-there-are-no-circular-import-and-exports.js
+++ b/tests/baselines/reference/tscWatch/emitAndErrorUpdates/assumeChangesOnlyAffectDirectDependenciesAndD/updates-errors-when-file-transitively-exported-file-changes/when-there-are-no-circular-import-and-exports.js
@@ -111,7 +111,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./data"), exports);
diff --git a/tests/baselines/reference/tscWatch/emitAndErrorUpdates/default/updates-errors-when-file-transitively-exported-file-changes/when-there-are-circular-import-and-exports.js b/tests/baselines/reference/tscWatch/emitAndErrorUpdates/default/updates-errors-when-file-transitively-exported-file-changes/when-there-are-circular-import-and-exports.js
index 99e8ce8517c..428ebb2f2cc 100644
--- a/tests/baselines/reference/tscWatch/emitAndErrorUpdates/default/updates-errors-when-file-transitively-exported-file-changes/when-there-are-circular-import-and-exports.js
+++ b/tests/baselines/reference/tscWatch/emitAndErrorUpdates/default/updates-errors-when-file-transitively-exported-file-changes/when-there-are-circular-import-and-exports.js
@@ -107,7 +107,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./data"), exports);
diff --git a/tests/baselines/reference/tscWatch/emitAndErrorUpdates/default/updates-errors-when-file-transitively-exported-file-changes/when-there-are-no-circular-import-and-exports.js b/tests/baselines/reference/tscWatch/emitAndErrorUpdates/default/updates-errors-when-file-transitively-exported-file-changes/when-there-are-no-circular-import-and-exports.js
index e7ad49e6e76..962397b4689 100644
--- a/tests/baselines/reference/tscWatch/emitAndErrorUpdates/default/updates-errors-when-file-transitively-exported-file-changes/when-there-are-no-circular-import-and-exports.js
+++ b/tests/baselines/reference/tscWatch/emitAndErrorUpdates/default/updates-errors-when-file-transitively-exported-file-changes/when-there-are-no-circular-import-and-exports.js
@@ -90,7 +90,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./data"), exports);
diff --git a/tests/baselines/reference/tscWatch/emitAndErrorUpdates/defaultAndD/updates-errors-when-file-transitively-exported-file-changes/when-there-are-circular-import-and-exports.js b/tests/baselines/reference/tscWatch/emitAndErrorUpdates/defaultAndD/updates-errors-when-file-transitively-exported-file-changes/when-there-are-circular-import-and-exports.js
index 5ee82dfb58b..c96fbaa4f9b 100644
--- a/tests/baselines/reference/tscWatch/emitAndErrorUpdates/defaultAndD/updates-errors-when-file-transitively-exported-file-changes/when-there-are-circular-import-and-exports.js
+++ b/tests/baselines/reference/tscWatch/emitAndErrorUpdates/defaultAndD/updates-errors-when-file-transitively-exported-file-changes/when-there-are-circular-import-and-exports.js
@@ -137,7 +137,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./data"), exports);
diff --git a/tests/baselines/reference/tscWatch/emitAndErrorUpdates/defaultAndD/updates-errors-when-file-transitively-exported-file-changes/when-there-are-no-circular-import-and-exports.js b/tests/baselines/reference/tscWatch/emitAndErrorUpdates/defaultAndD/updates-errors-when-file-transitively-exported-file-changes/when-there-are-no-circular-import-and-exports.js
index 68940266979..e194134c79e 100644
--- a/tests/baselines/reference/tscWatch/emitAndErrorUpdates/defaultAndD/updates-errors-when-file-transitively-exported-file-changes/when-there-are-no-circular-import-and-exports.js
+++ b/tests/baselines/reference/tscWatch/emitAndErrorUpdates/defaultAndD/updates-errors-when-file-transitively-exported-file-changes/when-there-are-no-circular-import-and-exports.js
@@ -111,7 +111,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./data"), exports);
diff --git a/tests/baselines/reference/tscWatch/emitAndErrorUpdates/isolatedModules/updates-errors-when-file-transitively-exported-file-changes/when-there-are-circular-import-and-exports.js b/tests/baselines/reference/tscWatch/emitAndErrorUpdates/isolatedModules/updates-errors-when-file-transitively-exported-file-changes/when-there-are-circular-import-and-exports.js
index 35900c38da7..8fc1381f64b 100644
--- a/tests/baselines/reference/tscWatch/emitAndErrorUpdates/isolatedModules/updates-errors-when-file-transitively-exported-file-changes/when-there-are-circular-import-and-exports.js
+++ b/tests/baselines/reference/tscWatch/emitAndErrorUpdates/isolatedModules/updates-errors-when-file-transitively-exported-file-changes/when-there-are-circular-import-and-exports.js
@@ -69,7 +69,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./tools.interface"), exports);
@@ -85,7 +85,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./tools/public"), exports);
@@ -129,7 +129,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./data"), exports);
diff --git a/tests/baselines/reference/tscWatch/emitAndErrorUpdates/isolatedModules/updates-errors-when-file-transitively-exported-file-changes/when-there-are-no-circular-import-and-exports.js b/tests/baselines/reference/tscWatch/emitAndErrorUpdates/isolatedModules/updates-errors-when-file-transitively-exported-file-changes/when-there-are-no-circular-import-and-exports.js
index 0797a5fba76..45d6b8841d1 100644
--- a/tests/baselines/reference/tscWatch/emitAndErrorUpdates/isolatedModules/updates-errors-when-file-transitively-exported-file-changes/when-there-are-no-circular-import-and-exports.js
+++ b/tests/baselines/reference/tscWatch/emitAndErrorUpdates/isolatedModules/updates-errors-when-file-transitively-exported-file-changes/when-there-are-no-circular-import-and-exports.js
@@ -63,7 +63,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./tools.interface"), exports);
@@ -79,7 +79,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./tools/public"), exports);
@@ -112,7 +112,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./data"), exports);
diff --git a/tests/baselines/reference/tscWatch/emitAndErrorUpdates/isolatedModulesAndD/updates-errors-when-file-transitively-exported-file-changes/when-there-are-circular-import-and-exports.js b/tests/baselines/reference/tscWatch/emitAndErrorUpdates/isolatedModulesAndD/updates-errors-when-file-transitively-exported-file-changes/when-there-are-circular-import-and-exports.js
index 6baae59de36..8e63c394d19 100644
--- a/tests/baselines/reference/tscWatch/emitAndErrorUpdates/isolatedModulesAndD/updates-errors-when-file-transitively-exported-file-changes/when-there-are-circular-import-and-exports.js
+++ b/tests/baselines/reference/tscWatch/emitAndErrorUpdates/isolatedModulesAndD/updates-errors-when-file-transitively-exported-file-changes/when-there-are-circular-import-and-exports.js
@@ -75,7 +75,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./tools.interface"), exports);
@@ -95,7 +95,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./tools/public"), exports);
@@ -159,7 +159,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./data"), exports);
diff --git a/tests/baselines/reference/tscWatch/emitAndErrorUpdates/isolatedModulesAndD/updates-errors-when-file-transitively-exported-file-changes/when-there-are-no-circular-import-and-exports.js b/tests/baselines/reference/tscWatch/emitAndErrorUpdates/isolatedModulesAndD/updates-errors-when-file-transitively-exported-file-changes/when-there-are-no-circular-import-and-exports.js
index 46e2e1890c9..776f2b51708 100644
--- a/tests/baselines/reference/tscWatch/emitAndErrorUpdates/isolatedModulesAndD/updates-errors-when-file-transitively-exported-file-changes/when-there-are-no-circular-import-and-exports.js
+++ b/tests/baselines/reference/tscWatch/emitAndErrorUpdates/isolatedModulesAndD/updates-errors-when-file-transitively-exported-file-changes/when-there-are-no-circular-import-and-exports.js
@@ -69,7 +69,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./tools.interface"), exports);
@@ -89,7 +89,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./tools/public"), exports);
@@ -133,7 +133,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./data"), exports);
diff --git a/tests/baselines/reference/tscWatch/programUpdates/changes-in-files-are-reflected-in-project-structure.js b/tests/baselines/reference/tscWatch/programUpdates/changes-in-files-are-reflected-in-project-structure.js
index c2fc6e99053..82376413048 100644
--- a/tests/baselines/reference/tscWatch/programUpdates/changes-in-files-are-reflected-in-project-structure.js
+++ b/tests/baselines/reference/tscWatch/programUpdates/changes-in-files-are-reflected-in-project-structure.js
@@ -37,7 +37,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./f2"), exports);
@@ -94,7 +94,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("../c/f3"), exports);
diff --git a/tests/baselines/reference/tscWatch/programUpdates/deleted-files-affect-project-structure-2.js b/tests/baselines/reference/tscWatch/programUpdates/deleted-files-affect-project-structure-2.js
index a0ec467ba8e..295f438f9c3 100644
--- a/tests/baselines/reference/tscWatch/programUpdates/deleted-files-affect-project-structure-2.js
+++ b/tests/baselines/reference/tscWatch/programUpdates/deleted-files-affect-project-structure-2.js
@@ -37,7 +37,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("../c/f3"), exports);
@@ -53,7 +53,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./f2"), exports);
diff --git a/tests/baselines/reference/tscWatch/programUpdates/deleted-files-affect-project-structure.js b/tests/baselines/reference/tscWatch/programUpdates/deleted-files-affect-project-structure.js
index d1c2cae10ed..bb7627cc7db 100644
--- a/tests/baselines/reference/tscWatch/programUpdates/deleted-files-affect-project-structure.js
+++ b/tests/baselines/reference/tscWatch/programUpdates/deleted-files-affect-project-structure.js
@@ -37,7 +37,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("../c/f3"), exports);
@@ -53,7 +53,7 @@ var __createBinding = (this && this.__createBinding) || (Object.create ? (functi
     o[k2] = m[k];
 }));
 var __exportStar = (this && this.__exportStar) || function(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) __createBinding(exports, m, p);
+    for (var p in m) if (!Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
 }
 exports.__esModule = true;
 __exportStar(require("./f2"), exports);
diff --git a/tests/baselines/reference/tsxAttributeResolution15.js b/tests/baselines/reference/tsxAttributeResolution15.js
index 5a3e1ff4d3f..9d7baab6402 100644
--- a/tests/baselines/reference/tsxAttributeResolution15.js
+++ b/tests/baselines/reference/tsxAttributeResolution15.js
@@ -21,7 +21,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxAttributeResolution16.js b/tests/baselines/reference/tsxAttributeResolution16.js
index 2bdf6961583..61be88a79d2 100644
--- a/tests/baselines/reference/tsxAttributeResolution16.js
+++ b/tests/baselines/reference/tsxAttributeResolution16.js
@@ -30,7 +30,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxCorrectlyParseLessThanComparison1.js b/tests/baselines/reference/tsxCorrectlyParseLessThanComparison1.js
index 8102e3484da..2591e74092a 100644
--- a/tests/baselines/reference/tsxCorrectlyParseLessThanComparison1.js
+++ b/tests/baselines/reference/tsxCorrectlyParseLessThanComparison1.js
@@ -25,7 +25,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxDefaultAttributesResolution1.js b/tests/baselines/reference/tsxDefaultAttributesResolution1.js
index 617b475f713..e435943b79a 100644
--- a/tests/baselines/reference/tsxDefaultAttributesResolution1.js
+++ b/tests/baselines/reference/tsxDefaultAttributesResolution1.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxDefaultAttributesResolution2.js b/tests/baselines/reference/tsxDefaultAttributesResolution2.js
index 5d74321695f..00f8afd2427 100644
--- a/tests/baselines/reference/tsxDefaultAttributesResolution2.js
+++ b/tests/baselines/reference/tsxDefaultAttributesResolution2.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxDefaultAttributesResolution3.js b/tests/baselines/reference/tsxDefaultAttributesResolution3.js
index 5a9996e2704..1fecc5c3006 100644
--- a/tests/baselines/reference/tsxDefaultAttributesResolution3.js
+++ b/tests/baselines/reference/tsxDefaultAttributesResolution3.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxDynamicTagName5.js b/tests/baselines/reference/tsxDynamicTagName5.js
index adfaef5066e..e8f0df516f3 100644
--- a/tests/baselines/reference/tsxDynamicTagName5.js
+++ b/tests/baselines/reference/tsxDynamicTagName5.js
@@ -24,7 +24,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxDynamicTagName7.js b/tests/baselines/reference/tsxDynamicTagName7.js
index 285f60f010e..7e2d640abfe 100644
--- a/tests/baselines/reference/tsxDynamicTagName7.js
+++ b/tests/baselines/reference/tsxDynamicTagName7.js
@@ -24,7 +24,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxDynamicTagName8.js b/tests/baselines/reference/tsxDynamicTagName8.js
index e2c32f83366..1d4250d3bfa 100644
--- a/tests/baselines/reference/tsxDynamicTagName8.js
+++ b/tests/baselines/reference/tsxDynamicTagName8.js
@@ -24,7 +24,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxDynamicTagName9.js b/tests/baselines/reference/tsxDynamicTagName9.js
index 9e2285ff15c..e0aaedddd8c 100644
--- a/tests/baselines/reference/tsxDynamicTagName9.js
+++ b/tests/baselines/reference/tsxDynamicTagName9.js
@@ -24,7 +24,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxExternalModuleEmit1.js b/tests/baselines/reference/tsxExternalModuleEmit1.js
index 622840462a1..0be4fbffc2d 100644
--- a/tests/baselines/reference/tsxExternalModuleEmit1.js
+++ b/tests/baselines/reference/tsxExternalModuleEmit1.js
@@ -36,7 +36,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
@@ -64,7 +64,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxFragmentChildrenCheck.js b/tests/baselines/reference/tsxFragmentChildrenCheck.js
index c2121097a59..ed089334c48 100644
--- a/tests/baselines/reference/tsxFragmentChildrenCheck.js
+++ b/tests/baselines/reference/tsxFragmentChildrenCheck.js
@@ -41,7 +41,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxGenericAttributesType3.js b/tests/baselines/reference/tsxGenericAttributesType3.js
index fb46fe983dc..da6ec20d531 100644
--- a/tests/baselines/reference/tsxGenericAttributesType3.js
+++ b/tests/baselines/reference/tsxGenericAttributesType3.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxGenericAttributesType4.js b/tests/baselines/reference/tsxGenericAttributesType4.js
index 0b2353e67d9..f004f1763da 100644
--- a/tests/baselines/reference/tsxGenericAttributesType4.js
+++ b/tests/baselines/reference/tsxGenericAttributesType4.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxGenericAttributesType5.js b/tests/baselines/reference/tsxGenericAttributesType5.js
index ffc320bb4eb..a6e23ea73e7 100644
--- a/tests/baselines/reference/tsxGenericAttributesType5.js
+++ b/tests/baselines/reference/tsxGenericAttributesType5.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxGenericAttributesType6.js b/tests/baselines/reference/tsxGenericAttributesType6.js
index 7fc020a2683..d1ee242972d 100644
--- a/tests/baselines/reference/tsxGenericAttributesType6.js
+++ b/tests/baselines/reference/tsxGenericAttributesType6.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxGenericAttributesType9.js b/tests/baselines/reference/tsxGenericAttributesType9.js
index 52e0fbc40ba..11f44382761 100644
--- a/tests/baselines/reference/tsxGenericAttributesType9.js
+++ b/tests/baselines/reference/tsxGenericAttributesType9.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxLibraryManagedAttributes.js b/tests/baselines/reference/tsxLibraryManagedAttributes.js
index c5157ea6a89..0b1620a6ac6 100644
--- a/tests/baselines/reference/tsxLibraryManagedAttributes.js
+++ b/tests/baselines/reference/tsxLibraryManagedAttributes.js
@@ -131,7 +131,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxNotUsingApparentTypeOfSFC.js b/tests/baselines/reference/tsxNotUsingApparentTypeOfSFC.js
index 0c15cd0d07c..952d55a3d4a 100644
--- a/tests/baselines/reference/tsxNotUsingApparentTypeOfSFC.js
+++ b/tests/baselines/reference/tsxNotUsingApparentTypeOfSFC.js
@@ -26,7 +26,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution1.js b/tests/baselines/reference/tsxSpreadAttributesResolution1.js
index 9742d8348bc..8ea0582e255 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution1.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution1.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution10.js b/tests/baselines/reference/tsxSpreadAttributesResolution10.js
index 8f8e21a62a6..76899a1247a 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution10.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution10.js
@@ -29,7 +29,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution11.js b/tests/baselines/reference/tsxSpreadAttributesResolution11.js
index 6db169e348e..5ad41ac0d2f 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution11.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution11.js
@@ -37,7 +37,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution12.js b/tests/baselines/reference/tsxSpreadAttributesResolution12.js
index 394f524a960..9aaeb432812 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution12.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution12.js
@@ -38,7 +38,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution17.js b/tests/baselines/reference/tsxSpreadAttributesResolution17.js
index 9244a809a06..70750f67bf8 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution17.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution17.js
@@ -25,7 +25,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution2.js b/tests/baselines/reference/tsxSpreadAttributesResolution2.js
index 8d75bae4a19..75c37e0ff4b 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution2.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution2.js
@@ -30,7 +30,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution3.js b/tests/baselines/reference/tsxSpreadAttributesResolution3.js
index 0d094d4aef8..9ac169ef925 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution3.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution3.js
@@ -27,7 +27,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution4.js b/tests/baselines/reference/tsxSpreadAttributesResolution4.js
index 5ccfd8d5f90..5411899a5b0 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution4.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution4.js
@@ -40,7 +40,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution5.js b/tests/baselines/reference/tsxSpreadAttributesResolution5.js
index 2f826f2e59d..89f34c31bbd 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution5.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution5.js
@@ -39,7 +39,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution6.js b/tests/baselines/reference/tsxSpreadAttributesResolution6.js
index 8c78efeedd0..ba2d307ffdc 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution6.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution6.js
@@ -23,7 +23,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution7.js b/tests/baselines/reference/tsxSpreadAttributesResolution7.js
index 6248df6f042..a9e6bb1b5ce 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution7.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution7.js
@@ -30,7 +30,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution8.js b/tests/baselines/reference/tsxSpreadAttributesResolution8.js
index 1b22bb0e17c..5c6b853e084 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution8.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution8.js
@@ -32,7 +32,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution9.js b/tests/baselines/reference/tsxSpreadAttributesResolution9.js
index d92e3cfa16c..694d546ac3c 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution9.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution9.js
@@ -30,7 +30,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxSpreadDoesNotReportExcessProps.js b/tests/baselines/reference/tsxSpreadDoesNotReportExcessProps.js
index ea9ac663998..5e926a7ec91 100644
--- a/tests/baselines/reference/tsxSpreadDoesNotReportExcessProps.js
+++ b/tests/baselines/reference/tsxSpreadDoesNotReportExcessProps.js
@@ -17,7 +17,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxStatelessFunctionComponents2.js b/tests/baselines/reference/tsxStatelessFunctionComponents2.js
index 50eadb9774d..41f2a6f0622 100644
--- a/tests/baselines/reference/tsxStatelessFunctionComponents2.js
+++ b/tests/baselines/reference/tsxStatelessFunctionComponents2.js
@@ -43,7 +43,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxUnionElementType3.js b/tests/baselines/reference/tsxUnionElementType3.js
index e72b47e3aab..0836684701a 100644
--- a/tests/baselines/reference/tsxUnionElementType3.js
+++ b/tests/baselines/reference/tsxUnionElementType3.js
@@ -42,7 +42,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxUnionElementType4.js b/tests/baselines/reference/tsxUnionElementType4.js
index 5619f8c6d48..a0d956a4f09 100644
--- a/tests/baselines/reference/tsxUnionElementType4.js
+++ b/tests/baselines/reference/tsxUnionElementType4.js
@@ -41,7 +41,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/tsxUnionTypeComponent1.js b/tests/baselines/reference/tsxUnionTypeComponent1.js
index 9e004413575..7d07c62b113 100644
--- a/tests/baselines/reference/tsxUnionTypeComponent1.js
+++ b/tests/baselines/reference/tsxUnionTypeComponent1.js
@@ -29,7 +29,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/typeAliasFunctionTypeSharedSymbol.js b/tests/baselines/reference/typeAliasFunctionTypeSharedSymbol.js
index 1eedb2413ea..c9e0d0fd4e8 100644
--- a/tests/baselines/reference/typeAliasFunctionTypeSharedSymbol.js
+++ b/tests/baselines/reference/typeAliasFunctionTypeSharedSymbol.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/typeAssertions.js b/tests/baselines/reference/typeAssertions.js
index 8f37011a273..6b0c52f0685 100644
--- a/tests/baselines/reference/typeAssertions.js
+++ b/tests/baselines/reference/typeAssertions.js
@@ -56,7 +56,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/typeGuardFunction.js b/tests/baselines/reference/typeGuardFunction.js
index 7d762946e30..c195db9b439 100644
--- a/tests/baselines/reference/typeGuardFunction.js
+++ b/tests/baselines/reference/typeGuardFunction.js
@@ -87,7 +87,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/typeGuardFunctionErrors.js b/tests/baselines/reference/typeGuardFunctionErrors.js
index 69eb02229b9..ecbaf84669e 100644
--- a/tests/baselines/reference/typeGuardFunctionErrors.js
+++ b/tests/baselines/reference/typeGuardFunctionErrors.js
@@ -172,7 +172,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/typeGuardFunctionGenerics.js b/tests/baselines/reference/typeGuardFunctionGenerics.js
index 13d14fa6bb6..216fb13948d 100644
--- a/tests/baselines/reference/typeGuardFunctionGenerics.js
+++ b/tests/baselines/reference/typeGuardFunctionGenerics.js
@@ -37,7 +37,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/typeGuardFunctionOfFormThis.js b/tests/baselines/reference/typeGuardFunctionOfFormThis.js
index 1d52025c9f7..14d390e56bd 100644
--- a/tests/baselines/reference/typeGuardFunctionOfFormThis.js
+++ b/tests/baselines/reference/typeGuardFunctionOfFormThis.js
@@ -146,7 +146,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/typeGuardFunctionOfFormThisErrors.js b/tests/baselines/reference/typeGuardFunctionOfFormThisErrors.js
index 6db9d7f6885..0e36a2cf6e8 100644
--- a/tests/baselines/reference/typeGuardFunctionOfFormThisErrors.js
+++ b/tests/baselines/reference/typeGuardFunctionOfFormThisErrors.js
@@ -64,7 +64,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/typeGuardOfFormInstanceOf.js b/tests/baselines/reference/typeGuardOfFormInstanceOf.js
index 554e3c0d572..577ff15119f 100644
--- a/tests/baselines/reference/typeGuardOfFormInstanceOf.js
+++ b/tests/baselines/reference/typeGuardOfFormInstanceOf.js
@@ -77,7 +77,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/typeGuardOfFormIsType.js b/tests/baselines/reference/typeGuardOfFormIsType.js
index 57c0da2f4e5..be4eb3b8ae8 100644
--- a/tests/baselines/reference/typeGuardOfFormIsType.js
+++ b/tests/baselines/reference/typeGuardOfFormIsType.js
@@ -41,7 +41,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/typeGuardOfFormThisMember.js b/tests/baselines/reference/typeGuardOfFormThisMember.js
index 50c8ff0f789..00b58e079d4 100644
--- a/tests/baselines/reference/typeGuardOfFormThisMember.js
+++ b/tests/baselines/reference/typeGuardOfFormThisMember.js
@@ -87,7 +87,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/typeGuardOfFormThisMemberErrors.js b/tests/baselines/reference/typeGuardOfFormThisMemberErrors.js
index 8456dc1797e..b8920537a4c 100644
--- a/tests/baselines/reference/typeGuardOfFormThisMemberErrors.js
+++ b/tests/baselines/reference/typeGuardOfFormThisMemberErrors.js
@@ -37,7 +37,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/typeMatch2.js b/tests/baselines/reference/typeMatch2.js
index cc5073f4563..ce165381006 100644
--- a/tests/baselines/reference/typeMatch2.js
+++ b/tests/baselines/reference/typeMatch2.js
@@ -49,7 +49,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/typeOfSuperCall.js b/tests/baselines/reference/typeOfSuperCall.js
index 88be3876544..a839228b6c5 100644
--- a/tests/baselines/reference/typeOfSuperCall.js
+++ b/tests/baselines/reference/typeOfSuperCall.js
@@ -13,7 +13,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/typeParameterAsBaseClass.js b/tests/baselines/reference/typeParameterAsBaseClass.js
index 8a963309eab..77cf0dafb02 100644
--- a/tests/baselines/reference/typeParameterAsBaseClass.js
+++ b/tests/baselines/reference/typeParameterAsBaseClass.js
@@ -7,7 +7,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/typeParameterAsBaseType.js b/tests/baselines/reference/typeParameterAsBaseType.js
index a6eddf38a38..944ee766ba2 100644
--- a/tests/baselines/reference/typeParameterAsBaseType.js
+++ b/tests/baselines/reference/typeParameterAsBaseType.js
@@ -17,7 +17,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/typeParameterExtendingUnion1.js b/tests/baselines/reference/typeParameterExtendingUnion1.js
index 78bcc9f650c..7c70b323f40 100644
--- a/tests/baselines/reference/typeParameterExtendingUnion1.js
+++ b/tests/baselines/reference/typeParameterExtendingUnion1.js
@@ -17,7 +17,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/typeParameterExtendingUnion2.js b/tests/baselines/reference/typeParameterExtendingUnion2.js
index 0a55d8fd0d4..5263cafe22e 100644
--- a/tests/baselines/reference/typeParameterExtendingUnion2.js
+++ b/tests/baselines/reference/typeParameterExtendingUnion2.js
@@ -17,7 +17,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/typeRelationships.js b/tests/baselines/reference/typeRelationships.js
index 27ba221a281..382cc684f62 100644
--- a/tests/baselines/reference/typeRelationships.js
+++ b/tests/baselines/reference/typeRelationships.js
@@ -45,7 +45,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/typeValueConflict1.js b/tests/baselines/reference/typeValueConflict1.js
index 074e73ea014..35d4c105bfb 100644
--- a/tests/baselines/reference/typeValueConflict1.js
+++ b/tests/baselines/reference/typeValueConflict1.js
@@ -16,7 +16,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/typeValueConflict2.js b/tests/baselines/reference/typeValueConflict2.js
index 534dfa1cdff..56adc78808e 100644
--- a/tests/baselines/reference/typeValueConflict2.js
+++ b/tests/baselines/reference/typeValueConflict2.js
@@ -23,7 +23,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/typeVariableTypeGuards.js b/tests/baselines/reference/typeVariableTypeGuards.js
index 385c8bd55c4..f880f1128eb 100644
--- a/tests/baselines/reference/typeVariableTypeGuards.js
+++ b/tests/baselines/reference/typeVariableTypeGuards.js
@@ -89,7 +89,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/typeofClass2.js b/tests/baselines/reference/typeofClass2.js
index e145a5d9b45..4f3839908d6 100644
--- a/tests/baselines/reference/typeofClass2.js
+++ b/tests/baselines/reference/typeofClass2.js
@@ -26,7 +26,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/typesWithSpecializedCallSignatures.js b/tests/baselines/reference/typesWithSpecializedCallSignatures.js
index 6cb2fbaff54..8a9175fcbb5 100644
--- a/tests/baselines/reference/typesWithSpecializedCallSignatures.js
+++ b/tests/baselines/reference/typesWithSpecializedCallSignatures.js
@@ -47,7 +47,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/typesWithSpecializedConstructSignatures.js b/tests/baselines/reference/typesWithSpecializedConstructSignatures.js
index 7bbe983955d..f50d1180708 100644
--- a/tests/baselines/reference/typesWithSpecializedConstructSignatures.js
+++ b/tests/baselines/reference/typesWithSpecializedConstructSignatures.js
@@ -45,7 +45,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/undeclaredBase.js b/tests/baselines/reference/undeclaredBase.js
index efbd2b49b41..b25eb8e3a75 100644
--- a/tests/baselines/reference/undeclaredBase.js
+++ b/tests/baselines/reference/undeclaredBase.js
@@ -8,7 +8,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/undefinedIsSubtypeOfEverything.js b/tests/baselines/reference/undefinedIsSubtypeOfEverything.js
index 40378779e0c..db9cc30e872 100644
--- a/tests/baselines/reference/undefinedIsSubtypeOfEverything.js
+++ b/tests/baselines/reference/undefinedIsSubtypeOfEverything.js
@@ -127,7 +127,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/underscoreMapFirst.js b/tests/baselines/reference/underscoreMapFirst.js
index 4fc0d0bf3ce..5a0a7bf55d7 100644
--- a/tests/baselines/reference/underscoreMapFirst.js
+++ b/tests/baselines/reference/underscoreMapFirst.js
@@ -53,7 +53,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/underscoreThisInDerivedClass01.js b/tests/baselines/reference/underscoreThisInDerivedClass01.js
index c42767ef3bf..3b6dbfdad0e 100644
--- a/tests/baselines/reference/underscoreThisInDerivedClass01.js
+++ b/tests/baselines/reference/underscoreThisInDerivedClass01.js
@@ -29,7 +29,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/underscoreThisInDerivedClass02.js b/tests/baselines/reference/underscoreThisInDerivedClass02.js
index 313b6663d54..f01f1292d4b 100644
--- a/tests/baselines/reference/underscoreThisInDerivedClass02.js
+++ b/tests/baselines/reference/underscoreThisInDerivedClass02.js
@@ -24,7 +24,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/unionTypeEquivalence.js b/tests/baselines/reference/unionTypeEquivalence.js
index 90ebc0ff152..b44f2ad4828 100644
--- a/tests/baselines/reference/unionTypeEquivalence.js
+++ b/tests/baselines/reference/unionTypeEquivalence.js
@@ -24,7 +24,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/unionTypeFromArrayLiteral.js b/tests/baselines/reference/unionTypeFromArrayLiteral.js
index 3c8e461ef18..eb21fe12678 100644
--- a/tests/baselines/reference/unionTypeFromArrayLiteral.js
+++ b/tests/baselines/reference/unionTypeFromArrayLiteral.js
@@ -32,7 +32,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/unionTypesAssignability.js b/tests/baselines/reference/unionTypesAssignability.js
index fc7b0c5020f..d9c47116464 100644
--- a/tests/baselines/reference/unionTypesAssignability.js
+++ b/tests/baselines/reference/unionTypesAssignability.js
@@ -78,7 +78,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/unknownSymbols1.js b/tests/baselines/reference/unknownSymbols1.js
index 64057fe8c71..8e98c329026 100644
--- a/tests/baselines/reference/unknownSymbols1.js
+++ b/tests/baselines/reference/unknownSymbols1.js
@@ -37,7 +37,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/unspecializedConstraints.js b/tests/baselines/reference/unspecializedConstraints.js
index 4f1a9196156..c812fc478ff 100644
--- a/tests/baselines/reference/unspecializedConstraints.js
+++ b/tests/baselines/reference/unspecializedConstraints.js
@@ -158,7 +158,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/untypedFunctionCallsWithTypeParameters1.js b/tests/baselines/reference/untypedFunctionCallsWithTypeParameters1.js
index d685742804f..166126200fa 100644
--- a/tests/baselines/reference/untypedFunctionCallsWithTypeParameters1.js
+++ b/tests/baselines/reference/untypedFunctionCallsWithTypeParameters1.js
@@ -48,7 +48,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/unusedClassesinNamespace4.js b/tests/baselines/reference/unusedClassesinNamespace4.js
index 57517346ea3..3d618fc258f 100644
--- a/tests/baselines/reference/unusedClassesinNamespace4.js
+++ b/tests/baselines/reference/unusedClassesinNamespace4.js
@@ -18,7 +18,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/unusedIdentifiersConsolidated1.js b/tests/baselines/reference/unusedIdentifiersConsolidated1.js
index a26090bb617..1437c2b185f 100644
--- a/tests/baselines/reference/unusedIdentifiersConsolidated1.js
+++ b/tests/baselines/reference/unusedIdentifiersConsolidated1.js
@@ -106,7 +106,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/unusedInvalidTypeArguments.js b/tests/baselines/reference/unusedInvalidTypeArguments.js
index 1a424921c1f..3cccc8422ea 100644
--- a/tests/baselines/reference/unusedInvalidTypeArguments.js
+++ b/tests/baselines/reference/unusedInvalidTypeArguments.js
@@ -57,7 +57,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
@@ -103,7 +103,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/useBeforeDeclaration_superClass.js b/tests/baselines/reference/useBeforeDeclaration_superClass.js
index 01492e31d89..28a462c3e50 100644
--- a/tests/baselines/reference/useBeforeDeclaration_superClass.js
+++ b/tests/baselines/reference/useBeforeDeclaration_superClass.js
@@ -33,7 +33,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/validUseOfThisInSuper.js b/tests/baselines/reference/validUseOfThisInSuper.js
index d35b84f3df1..0b45f1810e5 100644
--- a/tests/baselines/reference/validUseOfThisInSuper.js
+++ b/tests/baselines/reference/validUseOfThisInSuper.js
@@ -14,7 +14,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/varArgsOnConstructorTypes.js b/tests/baselines/reference/varArgsOnConstructorTypes.js
index bd99b74f8cb..a24ed6d7203 100644
--- a/tests/baselines/reference/varArgsOnConstructorTypes.js
+++ b/tests/baselines/reference/varArgsOnConstructorTypes.js
@@ -29,7 +29,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/varianceProblingAndZeroOrderIndexSignatureRelationsAlign.js b/tests/baselines/reference/varianceProblingAndZeroOrderIndexSignatureRelationsAlign.js
index cbac03d7a82..abfe43a1838 100644
--- a/tests/baselines/reference/varianceProblingAndZeroOrderIndexSignatureRelationsAlign.js
+++ b/tests/baselines/reference/varianceProblingAndZeroOrderIndexSignatureRelationsAlign.js
@@ -72,7 +72,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {
diff --git a/tests/baselines/reference/varianceProblingAndZeroOrderIndexSignatureRelationsAlign2.js b/tests/baselines/reference/varianceProblingAndZeroOrderIndexSignatureRelationsAlign2.js
index 8a4340ada95..b772124f760 100644
--- a/tests/baselines/reference/varianceProblingAndZeroOrderIndexSignatureRelationsAlign2.js
+++ b/tests/baselines/reference/varianceProblingAndZeroOrderIndexSignatureRelationsAlign2.js
@@ -72,7 +72,7 @@ var __extends = (this && this.__extends) || (function () {
     var extendStatics = function (d, b) {
         extendStatics = Object.setPrototypeOf ||
             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
         return extendStatics(d, b);
     };
     return function (d, b) {