diff --git a/tests/baselines/reference/checkIndexConstraintOfJavascriptClassExpression.errors.txt b/tests/baselines/reference/checkIndexConstraintOfJavascriptClassExpression.errors.txt
index f648f52bb58..d90e6d506ff 100644
--- a/tests/baselines/reference/checkIndexConstraintOfJavascriptClassExpression.errors.txt
+++ b/tests/baselines/reference/checkIndexConstraintOfJavascriptClassExpression.errors.txt
@@ -1,42 +1,29 @@
 tests/cases/compiler/weird.js(1,1): error TS2304: Cannot find name 'someFunction'.
 tests/cases/compiler/weird.js(1,23): error TS7006: Parameter 'BaseClass' implicitly has an 'any' type.
-tests/cases/compiler/weird.js(4,17): error TS8009: 'const' can only be used in a .ts file.
-tests/cases/compiler/weird.js(4,17): error TS1248: A class member cannot have the 'const' keyword.
-tests/cases/compiler/weird.js(5,3): error TS2377: Constructors for derived classes must contain a 'super' call.
-tests/cases/compiler/weird.js(6,4): error TS17009: 'super' must be called before accessing 'this' in the constructor of a derived class.
-tests/cases/compiler/weird.js(8,25): error TS7006: Parameter 'error' implicitly has an 'any' type.
-tests/cases/compiler/weird.js(9,54): error TS2663: Cannot find name 'DEFAULT_MESSAGE'. Did you mean the instance member 'this.DEFAULT_MESSAGE'?
+tests/cases/compiler/weird.js(6,13): error TS2346: Supplied parameters do not match any signature of call target.
+tests/cases/compiler/weird.js(9,17): error TS7006: Parameter 'error' implicitly has an 'any' type.
 
 
-==== tests/cases/compiler/weird.js (8 errors) ====
+==== tests/cases/compiler/weird.js (4 errors) ====
     someFunction(function(BaseClass) {
     ~~~~~~~~~~~~
 !!! error TS2304: Cannot find name 'someFunction'.
                           ~~~~~~~~~
 !!! error TS7006: Parameter 'BaseClass' implicitly has an 'any' type.
-            'use strict';
-    	class Hello extends BaseClass {
-                    const DEFAULT_MESSAGE = "nop!";
+        'use strict';
+        const DEFAULT_MESSAGE = "nop!";
+        class Hello extends BaseClass {
+            constructor() {
+                super();
+                ~~~~~~~
+!!! error TS2346: Supplied parameters do not match any signature of call target.
+                this.foo = "bar";
+            }
+            _render(error) {
                     ~~~~~
-!!! error TS8009: 'const' can only be used in a .ts file.
-                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-!!! error TS1248: A class member cannot have the 'const' keyword.
-    		constructor() {
-    		~~~~~~~~~~~~~~~
-    			this.foo = "bar";
-    ~~~~~~~~~~~~~~~~~~~~
-    			~~~~
-!!! error TS17009: 'super' must be called before accessing 'this' in the constructor of a derived class.
-    		}
-    ~~~
-!!! error TS2377: Constructors for derived classes must contain a 'super' call.
-                    _render(error) {
-                            ~~~~~
 !!! error TS7006: Parameter 'error' implicitly has an 'any' type.
-                        const message = error.message || DEFAULT_MESSAGE;
-                                                         ~~~~~~~~~~~~~~~
-!!! error TS2663: Cannot find name 'DEFAULT_MESSAGE'. Did you mean the instance member 'this.DEFAULT_MESSAGE'?
-                    }
-    	}
+                const message = error.message || DEFAULT_MESSAGE;
+            }
+        }
     });
     
\ No newline at end of file
diff --git a/tests/cases/compiler/checkIndexConstraintOfJavascriptClassExpression.ts b/tests/cases/compiler/checkIndexConstraintOfJavascriptClassExpression.ts
index 51af2b276a2..58844d98fd8 100644
--- a/tests/cases/compiler/checkIndexConstraintOfJavascriptClassExpression.ts
+++ b/tests/cases/compiler/checkIndexConstraintOfJavascriptClassExpression.ts
@@ -5,14 +5,15 @@
 // @noEmit: true
 // @out: foo.js
 someFunction(function(BaseClass) {
-        'use strict';
-	class Hello extends BaseClass {
-                const DEFAULT_MESSAGE = "nop!";
-		constructor() {
-			this.foo = "bar";
-		}
-                _render(error) {
-                    const message = error.message || DEFAULT_MESSAGE;
-                }
-	}
+    'use strict';
+    const DEFAULT_MESSAGE = "nop!";
+    class Hello extends BaseClass {
+        constructor() {
+            super();
+            this.foo = "bar";
+        }
+        _render(error) {
+            const message = error.message || DEFAULT_MESSAGE;
+        }
+    }
 });