diff --git a/src/compiler/binder.ts b/src/compiler/binder.ts
index 9281719b860..e6e3364840d 100644
--- a/src/compiler/binder.ts
+++ b/src/compiler/binder.ts
@@ -1,6 +1,3 @@
-/// <reference path="utilities.ts"/>
-/// <reference path="parser.ts"/>
-
 /* @internal */
 namespace ts {
     export const enum ModuleInstanceState {
diff --git a/src/compiler/builder.ts b/src/compiler/builder.ts
index cc506852252..92e651061ed 100644
--- a/src/compiler/builder.ts
+++ b/src/compiler/builder.ts
@@ -1,5 +1,3 @@
-/// <reference path="builderState.ts" />
-
 /*@internal*/
 namespace ts {
     /**
diff --git a/src/compiler/builderState.ts b/src/compiler/builderState.ts
index 581aa05f12c..ac9f36b1258 100644
--- a/src/compiler/builderState.ts
+++ b/src/compiler/builderState.ts
@@ -1,4 +1,3 @@
-/// <reference path="program.ts" />
 namespace ts {
     export interface EmitOutput {
         outputFiles: OutputFile[];
diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index 5634e06d5fd..33b7f924e36 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -1,7 +1,3 @@
-/// <reference path="moduleNameResolver.ts"/>
-/// <reference path="binder.ts"/>
-/// <reference path="symbolWalker.ts" />
-
 /* @internal */
 namespace ts {
     const ambientModuleSymbolRegex = /^".+"$/;
diff --git a/src/compiler/commandLineParser.ts b/src/compiler/commandLineParser.ts
index f386c701dd7..470bd111492 100644
--- a/src/compiler/commandLineParser.ts
+++ b/src/compiler/commandLineParser.ts
@@ -1,9 +1,3 @@
-/// <reference path="sys.ts"/>
-/// <reference path="types.ts"/>
-/// <reference path="core.ts"/>
-/// <reference path="diagnosticInformationMap.generated.ts"/>
-/// <reference path="parser.ts"/>
-
 namespace ts {
     /* @internal */
     export const compileOnSaveCommandLineOption: CommandLineOption = { name: "compileOnSave", type: "boolean" };
diff --git a/src/compiler/comments.ts b/src/compiler/comments.ts
index f26a66701e4..de629cccfe1 100644
--- a/src/compiler/comments.ts
+++ b/src/compiler/comments.ts
@@ -1,5 +1,3 @@
-/// <reference path="sourcemap.ts" />
-
 /* @internal */
 namespace ts {
     export interface CommentWriter {
diff --git a/src/compiler/core.ts b/src/compiler/core.ts
index cbfcf127200..232bdf2bc92 100644
--- a/src/compiler/core.ts
+++ b/src/compiler/core.ts
@@ -1,6 +1,3 @@
-/// <reference path="types.ts"/>
-/// <reference path="performance.ts" />
-
 namespace ts {
     // WARNING: The script `configureNightly.ts` uses a regexp to parse out these values.
     // If changing the text in this section, be sure to test `configureNightly` too.
diff --git a/src/compiler/emitter.ts b/src/compiler/emitter.ts
index 4bd055b1618..289f332cd33 100644
--- a/src/compiler/emitter.ts
+++ b/src/compiler/emitter.ts
@@ -1,8 +1,3 @@
-/// <reference path="checker.ts" />
-/// <reference path="transformer.ts" />
-/// <reference path="sourcemap.ts" />
-/// <reference path="comments.ts" />
-
 namespace ts {
     const brackets = createBracketsMap();
 
diff --git a/src/compiler/factory.ts b/src/compiler/factory.ts
index 82e4782f848..765c3c9cb4a 100644
--- a/src/compiler/factory.ts
+++ b/src/compiler/factory.ts
@@ -1,6 +1,3 @@
-/// <reference path="core.ts"/>
-/// <reference path="utilities.ts"/>
-
 namespace ts {
     function createSynthesizedNode(kind: SyntaxKind): Node {
         const node = createNode(kind, -1, -1);
diff --git a/src/compiler/moduleNameResolver.ts b/src/compiler/moduleNameResolver.ts
index d66ab5eb524..0027687c643 100644
--- a/src/compiler/moduleNameResolver.ts
+++ b/src/compiler/moduleNameResolver.ts
@@ -1,6 +1,3 @@
-/// <reference path="core.ts" />
-/// <reference path="diagnosticInformationMap.generated.ts" />
-
 namespace ts {
     /* @internal */
     export function trace(host: ModuleResolutionHost, message: DiagnosticMessage, ...args: any[]): void;
diff --git a/src/compiler/parser.ts b/src/compiler/parser.ts
index 0b89c3c313c..5e4ecf1df0b 100644
--- a/src/compiler/parser.ts
+++ b/src/compiler/parser.ts
@@ -1,6 +1,3 @@
-/// <reference path="utilities.ts"/>
-/// <reference path="scanner.ts"/>
-
 namespace ts {
     const enum SignatureFlags {
         None = 0,
diff --git a/src/compiler/program.ts b/src/compiler/program.ts
index 31220c68d3c..d78f78c7fec 100755
--- a/src/compiler/program.ts
+++ b/src/compiler/program.ts
@@ -1,7 +1,3 @@
-/// <reference path="sys.ts" />
-/// <reference path="emitter.ts" />
-/// <reference path="core.ts" />
-
 namespace ts {
     const ignoreDiagnosticCommentRegEx = /(^\s*$)|(^\s*\/\/\/?\s*(@ts-ignore)?)/;
 
diff --git a/src/compiler/resolutionCache.ts b/src/compiler/resolutionCache.ts
index 0946948f43d..c2b96649cf2 100644
--- a/src/compiler/resolutionCache.ts
+++ b/src/compiler/resolutionCache.ts
@@ -1,7 +1,3 @@
-/// <reference path="types.ts"/>
-/// <reference path="core.ts"/>
-/// <reference path="watchUtilities.ts"/>
-
 /*@internal*/
 namespace ts {
     /** This is the cache of module/typedirectives resolution that can be retained across program */
diff --git a/src/compiler/scanner.ts b/src/compiler/scanner.ts
index 43320b453c4..f2a01d22c24 100644
--- a/src/compiler/scanner.ts
+++ b/src/compiler/scanner.ts
@@ -1,6 +1,3 @@
-/// <reference path="core.ts"/>
-/// <reference path="diagnosticInformationMap.generated.ts"/>
-
 namespace ts {
     export type ErrorCallback = (message: DiagnosticMessage, length: number) => void;
 
diff --git a/src/compiler/sourcemap.ts b/src/compiler/sourcemap.ts
index 2e81da35cfd..6251f1963fa 100644
--- a/src/compiler/sourcemap.ts
+++ b/src/compiler/sourcemap.ts
@@ -1,5 +1,3 @@
-/// <reference path="checker.ts"/>
-
 /* @internal */
 namespace ts {
     export interface SourceMapWriter {
diff --git a/src/compiler/sys.ts b/src/compiler/sys.ts
index 8c2612155e4..c37315a2e56 100644
--- a/src/compiler/sys.ts
+++ b/src/compiler/sys.ts
@@ -1,5 +1,3 @@
-/// <reference path="core.ts"/>
-
 declare function setTimeout(handler: (...args: any[]) => void, timeout: number): any;
 declare function clearTimeout(handle: any): void;
 
diff --git a/src/compiler/transformer.ts b/src/compiler/transformer.ts
index c187176d069..8cadba453d8 100644
--- a/src/compiler/transformer.ts
+++ b/src/compiler/transformer.ts
@@ -1,18 +1,3 @@
-/// <reference path="visitor.ts" />
-/// <reference path="transformers/utilities.ts" />
-/// <reference path="transformers/ts.ts" />
-/// <reference path="transformers/jsx.ts" />
-/// <reference path="transformers/esnext.ts" />
-/// <reference path="transformers/es2017.ts" />
-/// <reference path="transformers/es2016.ts" />
-/// <reference path="transformers/es2015.ts" />
-/// <reference path="transformers/generators.ts" />
-/// <reference path="transformers/es5.ts" />
-/// <reference path="transformers/module/module.ts" />
-/// <reference path="transformers/module/system.ts" />
-/// <reference path="transformers/module/es2015.ts" />
-/// <reference path="transformers/declarations.ts" />
-
 /* @internal */
 namespace ts {
     function getModuleTransformer(moduleKind: ModuleKind): TransformerFactory<SourceFile> {
diff --git a/src/compiler/transformers/declarations.ts b/src/compiler/transformers/declarations.ts
index 7b6b5847753..67e4fa31cb2 100644
--- a/src/compiler/transformers/declarations.ts
+++ b/src/compiler/transformers/declarations.ts
@@ -1,7 +1,3 @@
-/// <reference path="../factory.ts" />
-/// <reference path="../visitor.ts" />
-/// <reference path="./declarations/diagnostics.ts" />
-
 /*@internal*/
 namespace ts {
     export function getDeclarationDiagnostics(host: EmitHost, resolver: EmitResolver, file: SourceFile | undefined): Diagnostic[] {
diff --git a/src/compiler/transformers/destructuring.ts b/src/compiler/transformers/destructuring.ts
index bafe43b0b15..35101d3be7f 100644
--- a/src/compiler/transformers/destructuring.ts
+++ b/src/compiler/transformers/destructuring.ts
@@ -1,6 +1,3 @@
-/// <reference path="../factory.ts" />
-/// <reference path="../visitor.ts" />
-
 /*@internal*/
 namespace ts {
     interface FlattenContext {
diff --git a/src/compiler/transformers/es2015.ts b/src/compiler/transformers/es2015.ts
index 72068688f9d..0a607494bb5 100644
--- a/src/compiler/transformers/es2015.ts
+++ b/src/compiler/transformers/es2015.ts
@@ -1,7 +1,3 @@
-/// <reference path="../factory.ts" />
-/// <reference path="../visitor.ts" />
-/// <reference path="./destructuring.ts" />
-
 /*@internal*/
 namespace ts {
     const enum ES2015SubstitutionFlags {
diff --git a/src/compiler/transformers/es2016.ts b/src/compiler/transformers/es2016.ts
index a9468991776..22b2f11b612 100644
--- a/src/compiler/transformers/es2016.ts
+++ b/src/compiler/transformers/es2016.ts
@@ -1,6 +1,3 @@
-/// <reference path="../factory.ts" />
-/// <reference path="../visitor.ts" />
-
 /*@internal*/
 namespace ts {
     export function transformES2016(context: TransformationContext) {
diff --git a/src/compiler/transformers/es2017.ts b/src/compiler/transformers/es2017.ts
index f2a5aeb35d2..6689f83ed5b 100644
--- a/src/compiler/transformers/es2017.ts
+++ b/src/compiler/transformers/es2017.ts
@@ -1,6 +1,3 @@
-/// <reference path="../factory.ts" />
-/// <reference path="../visitor.ts" />
-
 /*@internal*/
 namespace ts {
     type SuperContainer = ClassDeclaration | MethodDeclaration | GetAccessorDeclaration | SetAccessorDeclaration | ConstructorDeclaration;
diff --git a/src/compiler/transformers/es5.ts b/src/compiler/transformers/es5.ts
index bc6ee13520f..92ecce6a15c 100644
--- a/src/compiler/transformers/es5.ts
+++ b/src/compiler/transformers/es5.ts
@@ -1,6 +1,3 @@
-/// <reference path="../factory.ts" />
-/// <reference path="../visitor.ts" />
-
 /*@internal*/
 namespace ts {
     /**
diff --git a/src/compiler/transformers/esnext.ts b/src/compiler/transformers/esnext.ts
index 97fe93e508b..68861a5bb43 100644
--- a/src/compiler/transformers/esnext.ts
+++ b/src/compiler/transformers/esnext.ts
@@ -1,7 +1,3 @@
-/// <reference path="../factory.ts" />
-/// <reference path="../visitor.ts" />
-/// <reference path="es2017.ts" />
-
 /*@internal*/
 namespace ts {
     const enum ESNextSubstitutionFlags {
diff --git a/src/compiler/transformers/generators.ts b/src/compiler/transformers/generators.ts
index 82d8bc513f0..15f0d2d0f81 100644
--- a/src/compiler/transformers/generators.ts
+++ b/src/compiler/transformers/generators.ts
@@ -1,6 +1,3 @@
-/// <reference path="../factory.ts" />
-/// <reference path="../visitor.ts" />
-
 // Transforms generator functions into a compatible ES5 representation with similar runtime
 // semantics. This is accomplished by first transforming the body of each generator
 // function into an intermediate representation that is the compiled into a JavaScript
diff --git a/src/compiler/transformers/jsx.ts b/src/compiler/transformers/jsx.ts
index 07dc8f74db4..4acdf63b275 100644
--- a/src/compiler/transformers/jsx.ts
+++ b/src/compiler/transformers/jsx.ts
@@ -1,7 +1,3 @@
-/// <reference path="../factory.ts" />
-/// <reference path="../visitor.ts" />
-/// <reference path="./esnext.ts" />
-
 /*@internal*/
 namespace ts {
     export function transformJsx(context: TransformationContext) {
diff --git a/src/compiler/transformers/module/es2015.ts b/src/compiler/transformers/module/es2015.ts
index 4f218e4fdcf..a3315852632 100644
--- a/src/compiler/transformers/module/es2015.ts
+++ b/src/compiler/transformers/module/es2015.ts
@@ -1,6 +1,3 @@
-/// <reference path="../../factory.ts" />
-/// <reference path="../../visitor.ts" />
-
 /*@internal*/
 namespace ts {
     export function transformES2015Module(context: TransformationContext) {
diff --git a/src/compiler/transformers/module/module.ts b/src/compiler/transformers/module/module.ts
index 45d13357123..f9fb47f6a27 100644
--- a/src/compiler/transformers/module/module.ts
+++ b/src/compiler/transformers/module/module.ts
@@ -1,7 +1,3 @@
-/// <reference path="../../factory.ts" />
-/// <reference path="../../visitor.ts" />
-/// <reference path="../destructuring.ts" />
-
 /*@internal*/
 namespace ts {
     export function transformModule(context: TransformationContext) {
diff --git a/src/compiler/transformers/module/system.ts b/src/compiler/transformers/module/system.ts
index ca55cb3a9d1..5cde69e2ef6 100644
--- a/src/compiler/transformers/module/system.ts
+++ b/src/compiler/transformers/module/system.ts
@@ -1,7 +1,3 @@
-/// <reference path="../../factory.ts" />
-/// <reference path="../../visitor.ts" />
-/// <reference path="../destructuring.ts" />
-
 /*@internal*/
 namespace ts {
     export function transformSystemModule(context: TransformationContext) {
diff --git a/src/compiler/transformers/ts.ts b/src/compiler/transformers/ts.ts
index f22d8f02870..6cb4be16c74 100644
--- a/src/compiler/transformers/ts.ts
+++ b/src/compiler/transformers/ts.ts
@@ -1,7 +1,3 @@
-/// <reference path="../factory.ts" />
-/// <reference path="../visitor.ts" />
-/// <reference path="./destructuring.ts" />
-
 /*@internal*/
 namespace ts {
     /**
diff --git a/src/compiler/tsc.ts b/src/compiler/tsc.ts
index 09b64701988..ec4eb13917c 100644
--- a/src/compiler/tsc.ts
+++ b/src/compiler/tsc.ts
@@ -1,7 +1,3 @@
-/// <reference path="program.ts"/>
-/// <reference path="watch.ts"/>
-/// <reference path="commandLineParser.ts"/>
-
 namespace ts {
     interface Statistic {
         name: string;
diff --git a/src/compiler/utilities.ts b/src/compiler/utilities.ts
index 8e6b3f8ae39..7eec6fcb2eb 100644
--- a/src/compiler/utilities.ts
+++ b/src/compiler/utilities.ts
@@ -1,5 +1,3 @@
-/// <reference path="sys.ts" />
-
 /* @internal */
 namespace ts {
     export const resolvingEmptyArray: never[] = [] as never[];
diff --git a/src/compiler/visitor.ts b/src/compiler/visitor.ts
index 8d8e47a8f4c..7a70eb02e8e 100644
--- a/src/compiler/visitor.ts
+++ b/src/compiler/visitor.ts
@@ -1,7 +1,3 @@
-/// <reference path="checker.ts" />
-/// <reference path="factory.ts" />
-/// <reference path="utilities.ts" />
-
 namespace ts {
     const isTypeNodeOrTypeParameterDeclaration = or(isTypeNode, isTypeParameterDeclaration);
 
diff --git a/src/compiler/watch.ts b/src/compiler/watch.ts
index f53f01e3eb2..7f3d078b790 100644
--- a/src/compiler/watch.ts
+++ b/src/compiler/watch.ts
@@ -1,7 +1,3 @@
-/// <reference path="program.ts" />
-/// <reference path="builder.ts" />
-/// <reference path="resolutionCache.ts"/>
-
 /*@internal*/
 namespace ts {
     const sysFormatDiagnosticsHost: FormatDiagnosticsHost = sys ? {
diff --git a/src/compiler/watchUtilities.ts b/src/compiler/watchUtilities.ts
index 12ed9f855df..4fa9b28e162 100644
--- a/src/compiler/watchUtilities.ts
+++ b/src/compiler/watchUtilities.ts
@@ -1,5 +1,3 @@
-/// <reference path="core.ts" />
-
 /* @internal */
 namespace ts {
     /**