diff --git a/src/compiler/emitter.ts b/src/compiler/emitter.ts
index 7634e6a778ccf..e55163c3c1268 100644
--- a/src/compiler/emitter.ts
+++ b/src/compiler/emitter.ts
@@ -3103,7 +3103,7 @@ module ts {
                     compilerHost.getCurrentDirectory(),
                 /*isAbsolutePathAnUrl*/ false);
 
-                referencePathsOutput += "/// <reference path='" + declFileName + "' />" + newLine;
+                referencePathsOutput += "/// <reference path=\"" + declFileName + "\" />" + newLine;
             }
 
             if (root) {
diff --git a/tests/baselines/reference/declFileAmbientExternalModuleWithSingleExportedModule.js b/tests/baselines/reference/declFileAmbientExternalModuleWithSingleExportedModule.js
index d8e729782f828..1a175c3483dfa 100644
--- a/tests/baselines/reference/declFileAmbientExternalModuleWithSingleExportedModule.js
+++ b/tests/baselines/reference/declFileAmbientExternalModuleWithSingleExportedModule.js
@@ -33,6 +33,6 @@ declare module "SubModule" {
     }
 }
 //// [declFileAmbientExternalModuleWithSingleExportedModule_1.d.ts]
-/// <reference path='declFileAmbientExternalModuleWithSingleExportedModule_0.d.ts' />
+/// <reference path="declFileAmbientExternalModuleWithSingleExportedModule_0.d.ts" />
 import SubModule = require('SubModule');
 export declare var x: SubModule.m.m3.c;
diff --git a/tests/baselines/reference/declFileForExportedImport.js b/tests/baselines/reference/declFileForExportedImport.js
index 110865677c1ec..0575ea7bfd01a 100644
--- a/tests/baselines/reference/declFileForExportedImport.js
+++ b/tests/baselines/reference/declFileForExportedImport.js
@@ -24,6 +24,6 @@ var z = exports.b.x;
 //// [declFileForExportedImport_0.d.ts]
 export declare var x: number;
 //// [declFileForExportedImport_1.d.ts]
-/// <reference path='declFileForExportedImport_0.d.ts' />
+/// <reference path="declFileForExportedImport_0.d.ts" />
 export import a = require('declFileForExportedImport_0');
 export import b = a;
diff --git a/tests/baselines/reference/importDecl.js b/tests/baselines/reference/importDecl.js
index e37d46919e928..c9ef33c120172 100644
--- a/tests/baselines/reference/importDecl.js
+++ b/tests/baselines/reference/importDecl.js
@@ -205,11 +205,11 @@ export declare function foo(): d;
 import m4 = require("importDecl_require");
 export declare function foo2(): m4.d;
 //// [importDecl_1.d.ts]
-/// <reference path='importDecl_require.d.ts' />
-/// <reference path='importDecl_require1.d.ts' />
-/// <reference path='importDecl_require2.d.ts' />
-/// <reference path='importDecl_require3.d.ts' />
-/// <reference path='importDecl_require4.d.ts' />
+/// <reference path="importDecl_require.d.ts" />
+/// <reference path="importDecl_require1.d.ts" />
+/// <reference path="importDecl_require2.d.ts" />
+/// <reference path="importDecl_require3.d.ts" />
+/// <reference path="importDecl_require4.d.ts" />
 import m4 = require("importDecl_require");
 export declare var x4: m4.d;
 export declare var d4: typeof m4.d;
diff --git a/tests/baselines/reference/importDeclarationUsedAsTypeQuery.js b/tests/baselines/reference/importDeclarationUsedAsTypeQuery.js
index 9c6ca20eb06cb..6f6d9367278b0 100644
--- a/tests/baselines/reference/importDeclarationUsedAsTypeQuery.js
+++ b/tests/baselines/reference/importDeclarationUsedAsTypeQuery.js
@@ -27,6 +27,6 @@ export declare class B {
     id: number;
 }
 //// [importDeclarationUsedAsTypeQuery_1.d.ts]
-/// <reference path='importDeclarationUsedAsTypeQuery_require.d.ts' />
+/// <reference path="importDeclarationUsedAsTypeQuery_require.d.ts" />
 import a = require('importDeclarationUsedAsTypeQuery_require');
 export declare var x: typeof a;
diff --git a/tests/baselines/reference/missingImportAfterModuleImport.js b/tests/baselines/reference/missingImportAfterModuleImport.js
index 29e3ba3929afe..1d4f55a4df1f3 100644
--- a/tests/baselines/reference/missingImportAfterModuleImport.js
+++ b/tests/baselines/reference/missingImportAfterModuleImport.js
@@ -43,7 +43,7 @@ declare module "SubModule" {
     export = SubModule;
 }
 //// [missingImportAfterModuleImport_1.d.ts]
-/// <reference path='missingImportAfterModuleImport_0.d.ts' />
+/// <reference path="missingImportAfterModuleImport_0.d.ts" />
 import SubModule = require('SubModule');
 declare class MainModule {
     SubModule: SubModule;
diff --git a/tests/baselines/reference/moduleSymbolMerging.js b/tests/baselines/reference/moduleSymbolMerging.js
index 76d0399755044..0a812a62e09b8 100644
--- a/tests/baselines/reference/moduleSymbolMerging.js
+++ b/tests/baselines/reference/moduleSymbolMerging.js
@@ -35,7 +35,7 @@ declare module A {
     }
 }
 //// [B.d.ts]
-/// <reference path='A.d.ts' />
+/// <reference path="A.d.ts" />
 declare module A {
 }
 declare module B {
diff --git a/tests/baselines/reference/privacyCannotNameAccessorDeclFile.js b/tests/baselines/reference/privacyCannotNameAccessorDeclFile.js
index fb8a9c8e241b2..41e0bfec1ab11 100644
--- a/tests/baselines/reference/privacyCannotNameAccessorDeclFile.js
+++ b/tests/baselines/reference/privacyCannotNameAccessorDeclFile.js
@@ -402,7 +402,7 @@ export declare module SpecializedWidget {
     function createWidget2(): Widget2;
 }
 //// [privacyCannotNameAccessorDeclFile_exporter.d.ts]
-/// <reference path='privacyCannotNameAccessorDeclFile_GlobalWidgets.d.ts' />
+/// <reference path="privacyCannotNameAccessorDeclFile_GlobalWidgets.d.ts" />
 import Widgets = require("privacyCannotNameAccessorDeclFile_Widgets");
 import Widgets1 = require("GlobalWidgets");
 export declare function createExportedWidget1(): Widgets.Widget1;
diff --git a/tests/baselines/reference/privacyCannotNameVarTypeDeclFile.js b/tests/baselines/reference/privacyCannotNameVarTypeDeclFile.js
index f4436174dc5b9..fca1c2e32ac49 100644
--- a/tests/baselines/reference/privacyCannotNameVarTypeDeclFile.js
+++ b/tests/baselines/reference/privacyCannotNameVarTypeDeclFile.js
@@ -230,7 +230,7 @@ export declare module SpecializedWidget {
     function createWidget2(): Widget2;
 }
 //// [privacyCannotNameVarTypeDeclFile_exporter.d.ts]
-/// <reference path='privacyCannotNameVarTypeDeclFile_GlobalWidgets.d.ts' />
+/// <reference path="privacyCannotNameVarTypeDeclFile_GlobalWidgets.d.ts" />
 import Widgets = require("privacyCannotNameVarTypeDeclFile_Widgets");
 import Widgets1 = require("GlobalWidgets");
 export declare function createExportedWidget1(): Widgets.Widget1;
diff --git a/tests/baselines/reference/privacyFunctionCannotNameParameterTypeDeclFile.js b/tests/baselines/reference/privacyFunctionCannotNameParameterTypeDeclFile.js
index 42250b88e89e9..253a99f4a76ab 100644
--- a/tests/baselines/reference/privacyFunctionCannotNameParameterTypeDeclFile.js
+++ b/tests/baselines/reference/privacyFunctionCannotNameParameterTypeDeclFile.js
@@ -416,7 +416,7 @@ export declare module SpecializedWidget {
     function createWidget2(): Widget2;
 }
 //// [privacyFunctionCannotNameParameterTypeDeclFile_exporter.d.ts]
-/// <reference path='privacyFunctionCannotNameParameterTypeDeclFile_GlobalWidgets.d.ts' />
+/// <reference path="privacyFunctionCannotNameParameterTypeDeclFile_GlobalWidgets.d.ts" />
 import Widgets = require("privacyFunctionCannotNameParameterTypeDeclFile_Widgets");
 import Widgets1 = require("GlobalWidgets");
 export declare function createExportedWidget1(): Widgets.Widget1;
diff --git a/tests/baselines/reference/privacyFunctionCannotNameReturnTypeDeclFile.js b/tests/baselines/reference/privacyFunctionCannotNameReturnTypeDeclFile.js
index 75a91f38c54f0..7a7ef6691e2a8 100644
--- a/tests/baselines/reference/privacyFunctionCannotNameReturnTypeDeclFile.js
+++ b/tests/baselines/reference/privacyFunctionCannotNameReturnTypeDeclFile.js
@@ -373,7 +373,7 @@ export declare module SpecializedWidget {
     function createWidget2(): Widget2;
 }
 //// [privacyFunctionReturnTypeDeclFile_exporter.d.ts]
-/// <reference path='privacyFunctionReturnTypeDeclFile_GlobalWidgets.d.ts' />
+/// <reference path="privacyFunctionReturnTypeDeclFile_GlobalWidgets.d.ts" />
 import Widgets = require("privacyFunctionReturnTypeDeclFile_Widgets");
 import Widgets1 = require("GlobalWidgets");
 export declare function createExportedWidget1(): Widgets.Widget1;
diff --git a/tests/baselines/reference/privacyTopLevelAmbientExternalModuleImportWithExport.js b/tests/baselines/reference/privacyTopLevelAmbientExternalModuleImportWithExport.js
index 4ae42e1118e12..f0ee8c1bb6c4b 100644
--- a/tests/baselines/reference/privacyTopLevelAmbientExternalModuleImportWithExport.js
+++ b/tests/baselines/reference/privacyTopLevelAmbientExternalModuleImportWithExport.js
@@ -105,8 +105,8 @@ export declare class c_public {
     bar: string;
 }
 //// [privacyTopLevelAmbientExternalModuleImportWithExport_core.d.ts]
-/// <reference path='privacyTopLevelAmbientExternalModuleImportWithExport_require2.d.ts' />
-/// <reference path='privacyTopLevelAmbientExternalModuleImportWithExport_require3.d.ts' />
+/// <reference path="privacyTopLevelAmbientExternalModuleImportWithExport_require2.d.ts" />
+/// <reference path="privacyTopLevelAmbientExternalModuleImportWithExport_require3.d.ts" />
 export import im_public_mi_private = require("privacyTopLevelAmbientExternalModuleImportWithExport_require");
 export import im_public_mu_private = require("privacyTopLevelAmbientExternalModuleImportWithExport_require1");
 export import im_public_mi_public = require("m");
diff --git a/tests/baselines/reference/privacyTopLevelAmbientExternalModuleImportWithoutExport.js b/tests/baselines/reference/privacyTopLevelAmbientExternalModuleImportWithoutExport.js
index de0835bb6e38e..c03c532da3bbf 100644
--- a/tests/baselines/reference/privacyTopLevelAmbientExternalModuleImportWithoutExport.js
+++ b/tests/baselines/reference/privacyTopLevelAmbientExternalModuleImportWithoutExport.js
@@ -104,8 +104,8 @@ export declare class c_public {
     bar: string;
 }
 //// [privacyTopLevelAmbientExternalModuleImportWithoutExport_core.d.ts]
-/// <reference path='privacyTopLevelAmbientExternalModuleImportWithoutExport_require2.d.ts' />
-/// <reference path='privacyTopLevelAmbientExternalModuleImportWithoutExport_require3.d.ts' />
+/// <reference path="privacyTopLevelAmbientExternalModuleImportWithoutExport_require2.d.ts" />
+/// <reference path="privacyTopLevelAmbientExternalModuleImportWithoutExport_require3.d.ts" />
 import im_private_mi_private = require("m");
 import im_private_mu_private = require("m2");
 import im_private_mi_public = require("privacyTopLevelAmbientExternalModuleImportWithoutExport_require");
diff --git a/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderNoOutdir/amd/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderNoOutdir/amd/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderNoOutdir/node/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderNoOutdir/node/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts b/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
index 57ae3765ee2ac..d61b4c3b876cd 100644
--- a/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
+++ b/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../ref/m2.d.ts' />
+/// <reference path="../ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts b/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
index 57ae3765ee2ac..d61b4c3b876cd 100644
--- a/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
+++ b/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../ref/m2.d.ts' />
+/// <reference path="../ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts b/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
index 21bf97b489f62..9b9cdd4a21417 100644
--- a/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
+++ b/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../outdir/outAndOutDirFolder/ref/m2.d.ts' />
+/// <reference path="../outdir/outAndOutDirFolder/ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts b/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
index 21bf97b489f62..9b9cdd4a21417 100644
--- a/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
+++ b/tests/baselines/reference/project/mapRootAbsolutePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../outdir/outAndOutDirFolder/ref/m2.d.ts' />
+/// <reference path="../outdir/outAndOutDirFolder/ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/mapRootAbsolutePathMultifolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/mapRootAbsolutePathMultifolderNoOutdir/amd/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/mapRootAbsolutePathMultifolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/mapRootAbsolutePathMultifolderNoOutdir/amd/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootAbsolutePathMultifolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/mapRootAbsolutePathMultifolderNoOutdir/node/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/mapRootAbsolutePathMultifolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/mapRootAbsolutePathMultifolderNoOutdir/node/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootAbsolutePathMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts b/tests/baselines/reference/project/mapRootAbsolutePathMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/mapRootAbsolutePathMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
+++ b/tests/baselines/reference/project/mapRootAbsolutePathMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootAbsolutePathMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts b/tests/baselines/reference/project/mapRootAbsolutePathMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/mapRootAbsolutePathMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
+++ b/tests/baselines/reference/project/mapRootAbsolutePathMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootAbsolutePathSimpleNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/mapRootAbsolutePathSimpleNoOutdir/amd/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/mapRootAbsolutePathSimpleNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/mapRootAbsolutePathSimpleNoOutdir/amd/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootAbsolutePathSimpleNoOutdir/node/test.d.ts b/tests/baselines/reference/project/mapRootAbsolutePathSimpleNoOutdir/node/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/mapRootAbsolutePathSimpleNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/mapRootAbsolutePathSimpleNoOutdir/node/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootAbsolutePathSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/mapRootAbsolutePathSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/mapRootAbsolutePathSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/mapRootAbsolutePathSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootAbsolutePathSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/mapRootAbsolutePathSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/mapRootAbsolutePathSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/mapRootAbsolutePathSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootAbsolutePathSubfolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/mapRootAbsolutePathSubfolderNoOutdir/amd/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/mapRootAbsolutePathSubfolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/mapRootAbsolutePathSubfolderNoOutdir/amd/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootAbsolutePathSubfolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/mapRootAbsolutePathSubfolderNoOutdir/node/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/mapRootAbsolutePathSubfolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/mapRootAbsolutePathSubfolderNoOutdir/node/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootAbsolutePathSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/mapRootAbsolutePathSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/mapRootAbsolutePathSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/mapRootAbsolutePathSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootAbsolutePathSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/mapRootAbsolutePathSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/mapRootAbsolutePathSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/mapRootAbsolutePathSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderNoOutdir/amd/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderNoOutdir/amd/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderNoOutdir/node/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderNoOutdir/node/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts b/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
index 57ae3765ee2ac..d61b4c3b876cd 100644
--- a/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
+++ b/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../ref/m2.d.ts' />
+/// <reference path="../ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts b/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
index 57ae3765ee2ac..d61b4c3b876cd 100644
--- a/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
+++ b/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../ref/m2.d.ts' />
+/// <reference path="../ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts b/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
index 21bf97b489f62..9b9cdd4a21417 100644
--- a/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
+++ b/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../outdir/outAndOutDirFolder/ref/m2.d.ts' />
+/// <reference path="../outdir/outAndOutDirFolder/ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts b/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
index 21bf97b489f62..9b9cdd4a21417 100644
--- a/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
+++ b/tests/baselines/reference/project/mapRootRelativePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../outdir/outAndOutDirFolder/ref/m2.d.ts' />
+/// <reference path="../outdir/outAndOutDirFolder/ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/mapRootRelativePathMultifolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/mapRootRelativePathMultifolderNoOutdir/amd/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/mapRootRelativePathMultifolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/mapRootRelativePathMultifolderNoOutdir/amd/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootRelativePathMultifolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/mapRootRelativePathMultifolderNoOutdir/node/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/mapRootRelativePathMultifolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/mapRootRelativePathMultifolderNoOutdir/node/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootRelativePathMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts b/tests/baselines/reference/project/mapRootRelativePathMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/mapRootRelativePathMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
+++ b/tests/baselines/reference/project/mapRootRelativePathMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootRelativePathMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts b/tests/baselines/reference/project/mapRootRelativePathMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/mapRootRelativePathMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
+++ b/tests/baselines/reference/project/mapRootRelativePathMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootRelativePathSimpleNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/mapRootRelativePathSimpleNoOutdir/amd/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/mapRootRelativePathSimpleNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/mapRootRelativePathSimpleNoOutdir/amd/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootRelativePathSimpleNoOutdir/node/test.d.ts b/tests/baselines/reference/project/mapRootRelativePathSimpleNoOutdir/node/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/mapRootRelativePathSimpleNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/mapRootRelativePathSimpleNoOutdir/node/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootRelativePathSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/mapRootRelativePathSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/mapRootRelativePathSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/mapRootRelativePathSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootRelativePathSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/mapRootRelativePathSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/mapRootRelativePathSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/mapRootRelativePathSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootRelativePathSubfolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/mapRootRelativePathSubfolderNoOutdir/amd/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/mapRootRelativePathSubfolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/mapRootRelativePathSubfolderNoOutdir/amd/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootRelativePathSubfolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/mapRootRelativePathSubfolderNoOutdir/node/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/mapRootRelativePathSubfolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/mapRootRelativePathSubfolderNoOutdir/node/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootRelativePathSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/mapRootRelativePathSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/mapRootRelativePathSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/mapRootRelativePathSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/mapRootRelativePathSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/mapRootRelativePathSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/mapRootRelativePathSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/mapRootRelativePathSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlMixedSubfolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/maprootUrlMixedSubfolderNoOutdir/amd/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/maprootUrlMixedSubfolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlMixedSubfolderNoOutdir/amd/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlMixedSubfolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/maprootUrlMixedSubfolderNoOutdir/node/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/maprootUrlMixedSubfolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlMixedSubfolderNoOutdir/node/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/maprootUrlMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/maprootUrlMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/maprootUrlMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/maprootUrlMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts b/tests/baselines/reference/project/maprootUrlMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
index 57ae3765ee2ac..d61b4c3b876cd 100644
--- a/tests/baselines/reference/project/maprootUrlMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../ref/m2.d.ts' />
+/// <reference path="../ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts b/tests/baselines/reference/project/maprootUrlMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
index 57ae3765ee2ac..d61b4c3b876cd 100644
--- a/tests/baselines/reference/project/maprootUrlMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../ref/m2.d.ts' />
+/// <reference path="../ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts b/tests/baselines/reference/project/maprootUrlMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
index 21bf97b489f62..9b9cdd4a21417 100644
--- a/tests/baselines/reference/project/maprootUrlMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
+++ b/tests/baselines/reference/project/maprootUrlMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../outdir/outAndOutDirFolder/ref/m2.d.ts' />
+/// <reference path="../outdir/outAndOutDirFolder/ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts b/tests/baselines/reference/project/maprootUrlMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
index 21bf97b489f62..9b9cdd4a21417 100644
--- a/tests/baselines/reference/project/maprootUrlMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
+++ b/tests/baselines/reference/project/maprootUrlMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../outdir/outAndOutDirFolder/ref/m2.d.ts' />
+/// <reference path="../outdir/outAndOutDirFolder/ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlMultifolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/maprootUrlMultifolderNoOutdir/amd/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/maprootUrlMultifolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlMultifolderNoOutdir/amd/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlMultifolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/maprootUrlMultifolderNoOutdir/node/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/maprootUrlMultifolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlMultifolderNoOutdir/node/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts b/tests/baselines/reference/project/maprootUrlMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/maprootUrlMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts b/tests/baselines/reference/project/maprootUrlMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/maprootUrlMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlSimpleNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/maprootUrlSimpleNoOutdir/amd/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/maprootUrlSimpleNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlSimpleNoOutdir/amd/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlSimpleNoOutdir/node/test.d.ts b/tests/baselines/reference/project/maprootUrlSimpleNoOutdir/node/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/maprootUrlSimpleNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlSimpleNoOutdir/node/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/maprootUrlSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/maprootUrlSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/maprootUrlSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/maprootUrlSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlSubfolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/maprootUrlSubfolderNoOutdir/amd/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/maprootUrlSubfolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlSubfolderNoOutdir/amd/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlSubfolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/maprootUrlSubfolderNoOutdir/node/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/maprootUrlSubfolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlSubfolderNoOutdir/node/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/maprootUrlSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/maprootUrlSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/maprootUrlSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/maprootUrlSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderNoOutdir/amd/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderNoOutdir/amd/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderNoOutdir/node/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderNoOutdir/node/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts b/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
index 57ae3765ee2ac..d61b4c3b876cd 100644
--- a/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../ref/m2.d.ts' />
+/// <reference path="../ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts b/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
index 57ae3765ee2ac..d61b4c3b876cd 100644
--- a/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../ref/m2.d.ts' />
+/// <reference path="../ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts b/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
index 21bf97b489f62..9b9cdd4a21417 100644
--- a/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
+++ b/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../outdir/outAndOutDirFolder/ref/m2.d.ts' />
+/// <reference path="../outdir/outAndOutDirFolder/ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts b/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
index 21bf97b489f62..9b9cdd4a21417 100644
--- a/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
+++ b/tests/baselines/reference/project/maprootUrlsourcerootUrlMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../outdir/outAndOutDirFolder/ref/m2.d.ts' />
+/// <reference path="../outdir/outAndOutDirFolder/ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlsourcerootUrlMultifolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/maprootUrlsourcerootUrlMultifolderNoOutdir/amd/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/maprootUrlsourcerootUrlMultifolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlsourcerootUrlMultifolderNoOutdir/amd/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlsourcerootUrlMultifolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/maprootUrlsourcerootUrlMultifolderNoOutdir/node/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/maprootUrlsourcerootUrlMultifolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlsourcerootUrlMultifolderNoOutdir/node/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlsourcerootUrlMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts b/tests/baselines/reference/project/maprootUrlsourcerootUrlMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/maprootUrlsourcerootUrlMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlsourcerootUrlMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlsourcerootUrlMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts b/tests/baselines/reference/project/maprootUrlsourcerootUrlMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/maprootUrlsourcerootUrlMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlsourcerootUrlMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlsourcerootUrlSimpleNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/maprootUrlsourcerootUrlSimpleNoOutdir/amd/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/maprootUrlsourcerootUrlSimpleNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlsourcerootUrlSimpleNoOutdir/amd/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlsourcerootUrlSimpleNoOutdir/node/test.d.ts b/tests/baselines/reference/project/maprootUrlsourcerootUrlSimpleNoOutdir/node/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/maprootUrlsourcerootUrlSimpleNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlsourcerootUrlSimpleNoOutdir/node/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlsourcerootUrlSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/maprootUrlsourcerootUrlSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/maprootUrlsourcerootUrlSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlsourcerootUrlSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlsourcerootUrlSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/maprootUrlsourcerootUrlSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/maprootUrlsourcerootUrlSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlsourcerootUrlSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlsourcerootUrlSubfolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/maprootUrlsourcerootUrlSubfolderNoOutdir/amd/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/maprootUrlsourcerootUrlSubfolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlsourcerootUrlSubfolderNoOutdir/amd/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlsourcerootUrlSubfolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/maprootUrlsourcerootUrlSubfolderNoOutdir/node/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/maprootUrlsourcerootUrlSubfolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlsourcerootUrlSubfolderNoOutdir/node/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlsourcerootUrlSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/maprootUrlsourcerootUrlSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/maprootUrlsourcerootUrlSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlsourcerootUrlSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/maprootUrlsourcerootUrlSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/maprootUrlsourcerootUrlSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/maprootUrlsourcerootUrlSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/maprootUrlsourcerootUrlSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/outMixedSubfolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/outMixedSubfolderNoOutdir/amd/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/outMixedSubfolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/outMixedSubfolderNoOutdir/amd/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/outMixedSubfolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/outMixedSubfolderNoOutdir/node/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/outMixedSubfolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/outMixedSubfolderNoOutdir/node/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/outMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/outMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/outMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/outMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/outMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/outMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/outMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/outMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/outMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts b/tests/baselines/reference/project/outMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
index 57ae3765ee2ac..d61b4c3b876cd 100644
--- a/tests/baselines/reference/project/outMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
+++ b/tests/baselines/reference/project/outMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../ref/m2.d.ts' />
+/// <reference path="../ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/outMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts b/tests/baselines/reference/project/outMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
index 57ae3765ee2ac..d61b4c3b876cd 100644
--- a/tests/baselines/reference/project/outMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
+++ b/tests/baselines/reference/project/outMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../ref/m2.d.ts' />
+/// <reference path="../ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/outMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts b/tests/baselines/reference/project/outMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
index 21bf97b489f62..9b9cdd4a21417 100644
--- a/tests/baselines/reference/project/outMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
+++ b/tests/baselines/reference/project/outMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../outdir/outAndOutDirFolder/ref/m2.d.ts' />
+/// <reference path="../outdir/outAndOutDirFolder/ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/outMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts b/tests/baselines/reference/project/outMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
index 21bf97b489f62..9b9cdd4a21417 100644
--- a/tests/baselines/reference/project/outMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
+++ b/tests/baselines/reference/project/outMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../outdir/outAndOutDirFolder/ref/m2.d.ts' />
+/// <reference path="../outdir/outAndOutDirFolder/ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/outMultifolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/outMultifolderNoOutdir/amd/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/outMultifolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/outMultifolderNoOutdir/amd/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/outMultifolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/outMultifolderNoOutdir/node/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/outMultifolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/outMultifolderNoOutdir/node/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/outMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts b/tests/baselines/reference/project/outMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/outMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
+++ b/tests/baselines/reference/project/outMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/outMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts b/tests/baselines/reference/project/outMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/outMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
+++ b/tests/baselines/reference/project/outMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/outSimpleNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/outSimpleNoOutdir/amd/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/outSimpleNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/outSimpleNoOutdir/amd/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/outSimpleNoOutdir/node/test.d.ts b/tests/baselines/reference/project/outSimpleNoOutdir/node/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/outSimpleNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/outSimpleNoOutdir/node/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/outSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/outSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/outSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/outSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/outSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/outSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/outSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/outSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/outSubfolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/outSubfolderNoOutdir/amd/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/outSubfolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/outSubfolderNoOutdir/amd/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/outSubfolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/outSubfolderNoOutdir/node/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/outSubfolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/outSubfolderNoOutdir/node/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/outSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/outSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/outSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/outSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/outSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/outSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/outSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/outSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/quotesInFileAndDirectoryNames/amd/m'ain.d.ts b/tests/baselines/reference/project/quotesInFileAndDirectoryNames/amd/m'ain.d.ts
index cdde109b62bca..d7b4c67d491bb 100644
--- a/tests/baselines/reference/project/quotesInFileAndDirectoryNames/amd/m'ain.d.ts
+++ b/tests/baselines/reference/project/quotesInFileAndDirectoryNames/amd/m'ain.d.ts
@@ -1,3 +1,3 @@
-/// <reference path='li'b/class'A.d.ts' />
+/// <reference path="li'b/class'A.d.ts" />
 declare class ClassC extends test.ClassA {
 }
diff --git a/tests/baselines/reference/project/quotesInFileAndDirectoryNames/amd/quotesInFileAndDirectoryNames.dts.errors.txt b/tests/baselines/reference/project/quotesInFileAndDirectoryNames/amd/quotesInFileAndDirectoryNames.dts.errors.txt
deleted file mode 100644
index fc8bb956fb8d2..0000000000000
--- a/tests/baselines/reference/project/quotesInFileAndDirectoryNames/amd/quotesInFileAndDirectoryNames.dts.errors.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-m'ain.d.ts(1,1): error TS6053: File 'li.ts' not found.
-
-
-==== li'b/class'A.d.ts (0 errors) ====
-    declare module test {
-        class ClassA {
-            method(): void;
-        }
-    }
-    
-==== m'ain.d.ts (1 errors) ====
-    /// <reference path='li'b/class'A.d.ts' />
-    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-!!! File 'li.ts' not found.
-    declare class ClassC extends test.ClassA {
-    }
-    
\ No newline at end of file
diff --git a/tests/baselines/reference/project/quotesInFileAndDirectoryNames/node/m'ain.d.ts b/tests/baselines/reference/project/quotesInFileAndDirectoryNames/node/m'ain.d.ts
index cdde109b62bca..d7b4c67d491bb 100644
--- a/tests/baselines/reference/project/quotesInFileAndDirectoryNames/node/m'ain.d.ts
+++ b/tests/baselines/reference/project/quotesInFileAndDirectoryNames/node/m'ain.d.ts
@@ -1,3 +1,3 @@
-/// <reference path='li'b/class'A.d.ts' />
+/// <reference path="li'b/class'A.d.ts" />
 declare class ClassC extends test.ClassA {
 }
diff --git a/tests/baselines/reference/project/quotesInFileAndDirectoryNames/node/quotesInFileAndDirectoryNames.dts.errors.txt b/tests/baselines/reference/project/quotesInFileAndDirectoryNames/node/quotesInFileAndDirectoryNames.dts.errors.txt
deleted file mode 100644
index fc8bb956fb8d2..0000000000000
--- a/tests/baselines/reference/project/quotesInFileAndDirectoryNames/node/quotesInFileAndDirectoryNames.dts.errors.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-m'ain.d.ts(1,1): error TS6053: File 'li.ts' not found.
-
-
-==== li'b/class'A.d.ts (0 errors) ====
-    declare module test {
-        class ClassA {
-            method(): void;
-        }
-    }
-    
-==== m'ain.d.ts (1 errors) ====
-    /// <reference path='li'b/class'A.d.ts' />
-    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-!!! File 'li.ts' not found.
-    declare class ClassC extends test.ClassA {
-    }
-    
\ No newline at end of file
diff --git a/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderNoOutdir/amd/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderNoOutdir/amd/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderNoOutdir/node/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderNoOutdir/node/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts b/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
index 57ae3765ee2ac..d61b4c3b876cd 100644
--- a/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../ref/m2.d.ts' />
+/// <reference path="../ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts b/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
index 57ae3765ee2ac..d61b4c3b876cd 100644
--- a/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../ref/m2.d.ts' />
+/// <reference path="../ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts b/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
index 21bf97b489f62..9b9cdd4a21417 100644
--- a/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
+++ b/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../outdir/outAndOutDirFolder/ref/m2.d.ts' />
+/// <reference path="../outdir/outAndOutDirFolder/ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts b/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
index 21bf97b489f62..9b9cdd4a21417 100644
--- a/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
+++ b/tests/baselines/reference/project/sourceRootAbsolutePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../outdir/outAndOutDirFolder/ref/m2.d.ts' />
+/// <reference path="../outdir/outAndOutDirFolder/ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/sourceRootAbsolutePathMultifolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/sourceRootAbsolutePathMultifolderNoOutdir/amd/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/sourceRootAbsolutePathMultifolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootAbsolutePathMultifolderNoOutdir/amd/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootAbsolutePathMultifolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/sourceRootAbsolutePathMultifolderNoOutdir/node/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/sourceRootAbsolutePathMultifolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootAbsolutePathMultifolderNoOutdir/node/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootAbsolutePathMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts b/tests/baselines/reference/project/sourceRootAbsolutePathMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/sourceRootAbsolutePathMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootAbsolutePathMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootAbsolutePathMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts b/tests/baselines/reference/project/sourceRootAbsolutePathMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/sourceRootAbsolutePathMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootAbsolutePathMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootAbsolutePathSimpleNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/sourceRootAbsolutePathSimpleNoOutdir/amd/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/sourceRootAbsolutePathSimpleNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootAbsolutePathSimpleNoOutdir/amd/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootAbsolutePathSimpleNoOutdir/node/test.d.ts b/tests/baselines/reference/project/sourceRootAbsolutePathSimpleNoOutdir/node/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/sourceRootAbsolutePathSimpleNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootAbsolutePathSimpleNoOutdir/node/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootAbsolutePathSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/sourceRootAbsolutePathSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/sourceRootAbsolutePathSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootAbsolutePathSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootAbsolutePathSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/sourceRootAbsolutePathSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/sourceRootAbsolutePathSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootAbsolutePathSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootAbsolutePathSubfolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/sourceRootAbsolutePathSubfolderNoOutdir/amd/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/sourceRootAbsolutePathSubfolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootAbsolutePathSubfolderNoOutdir/amd/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootAbsolutePathSubfolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/sourceRootAbsolutePathSubfolderNoOutdir/node/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/sourceRootAbsolutePathSubfolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootAbsolutePathSubfolderNoOutdir/node/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootAbsolutePathSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/sourceRootAbsolutePathSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/sourceRootAbsolutePathSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootAbsolutePathSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootAbsolutePathSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/sourceRootAbsolutePathSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/sourceRootAbsolutePathSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootAbsolutePathSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderNoOutdir/amd/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderNoOutdir/amd/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderNoOutdir/node/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderNoOutdir/node/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts b/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
index 57ae3765ee2ac..d61b4c3b876cd 100644
--- a/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../ref/m2.d.ts' />
+/// <reference path="../ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts b/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
index 57ae3765ee2ac..d61b4c3b876cd 100644
--- a/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../ref/m2.d.ts' />
+/// <reference path="../ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts b/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
index 21bf97b489f62..9b9cdd4a21417 100644
--- a/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
+++ b/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../outdir/outAndOutDirFolder/ref/m2.d.ts' />
+/// <reference path="../outdir/outAndOutDirFolder/ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts b/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
index 21bf97b489f62..9b9cdd4a21417 100644
--- a/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
+++ b/tests/baselines/reference/project/sourceRootRelativePathMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../outdir/outAndOutDirFolder/ref/m2.d.ts' />
+/// <reference path="../outdir/outAndOutDirFolder/ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/sourceRootRelativePathMultifolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/sourceRootRelativePathMultifolderNoOutdir/amd/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/sourceRootRelativePathMultifolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootRelativePathMultifolderNoOutdir/amd/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootRelativePathMultifolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/sourceRootRelativePathMultifolderNoOutdir/node/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/sourceRootRelativePathMultifolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootRelativePathMultifolderNoOutdir/node/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootRelativePathMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts b/tests/baselines/reference/project/sourceRootRelativePathMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/sourceRootRelativePathMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootRelativePathMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootRelativePathMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts b/tests/baselines/reference/project/sourceRootRelativePathMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/sourceRootRelativePathMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootRelativePathMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootRelativePathSimpleNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/sourceRootRelativePathSimpleNoOutdir/amd/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/sourceRootRelativePathSimpleNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootRelativePathSimpleNoOutdir/amd/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootRelativePathSimpleNoOutdir/node/test.d.ts b/tests/baselines/reference/project/sourceRootRelativePathSimpleNoOutdir/node/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/sourceRootRelativePathSimpleNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootRelativePathSimpleNoOutdir/node/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootRelativePathSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/sourceRootRelativePathSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/sourceRootRelativePathSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootRelativePathSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootRelativePathSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/sourceRootRelativePathSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/sourceRootRelativePathSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootRelativePathSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootRelativePathSubfolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/sourceRootRelativePathSubfolderNoOutdir/amd/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/sourceRootRelativePathSubfolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootRelativePathSubfolderNoOutdir/amd/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootRelativePathSubfolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/sourceRootRelativePathSubfolderNoOutdir/node/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/sourceRootRelativePathSubfolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootRelativePathSubfolderNoOutdir/node/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootRelativePathSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/sourceRootRelativePathSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/sourceRootRelativePathSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootRelativePathSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourceRootRelativePathSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/sourceRootRelativePathSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/sourceRootRelativePathSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/sourceRootRelativePathSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcemapMixedSubfolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/sourcemapMixedSubfolderNoOutdir/amd/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/sourcemapMixedSubfolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/sourcemapMixedSubfolderNoOutdir/amd/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcemapMixedSubfolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/sourcemapMixedSubfolderNoOutdir/node/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/sourcemapMixedSubfolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/sourcemapMixedSubfolderNoOutdir/node/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcemapMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/sourcemapMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/sourcemapMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/sourcemapMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcemapMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/sourcemapMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/sourcemapMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/sourcemapMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcemapMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts b/tests/baselines/reference/project/sourcemapMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
index 57ae3765ee2ac..d61b4c3b876cd 100644
--- a/tests/baselines/reference/project/sourcemapMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
+++ b/tests/baselines/reference/project/sourcemapMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../ref/m2.d.ts' />
+/// <reference path="../ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/sourcemapMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts b/tests/baselines/reference/project/sourcemapMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
index 57ae3765ee2ac..d61b4c3b876cd 100644
--- a/tests/baselines/reference/project/sourcemapMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
+++ b/tests/baselines/reference/project/sourcemapMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../ref/m2.d.ts' />
+/// <reference path="../ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/sourcemapMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts b/tests/baselines/reference/project/sourcemapMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
index 21bf97b489f62..9b9cdd4a21417 100644
--- a/tests/baselines/reference/project/sourcemapMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
+++ b/tests/baselines/reference/project/sourcemapMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../outdir/outAndOutDirFolder/ref/m2.d.ts' />
+/// <reference path="../outdir/outAndOutDirFolder/ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/sourcemapMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts b/tests/baselines/reference/project/sourcemapMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
index 21bf97b489f62..9b9cdd4a21417 100644
--- a/tests/baselines/reference/project/sourcemapMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
+++ b/tests/baselines/reference/project/sourcemapMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../outdir/outAndOutDirFolder/ref/m2.d.ts' />
+/// <reference path="../outdir/outAndOutDirFolder/ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/sourcemapMultifolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/sourcemapMultifolderNoOutdir/amd/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/sourcemapMultifolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/sourcemapMultifolderNoOutdir/amd/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcemapMultifolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/sourcemapMultifolderNoOutdir/node/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/sourcemapMultifolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/sourcemapMultifolderNoOutdir/node/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcemapMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts b/tests/baselines/reference/project/sourcemapMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/sourcemapMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
+++ b/tests/baselines/reference/project/sourcemapMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcemapMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts b/tests/baselines/reference/project/sourcemapMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/sourcemapMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
+++ b/tests/baselines/reference/project/sourcemapMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcemapSimpleNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/sourcemapSimpleNoOutdir/amd/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/sourcemapSimpleNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/sourcemapSimpleNoOutdir/amd/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcemapSimpleNoOutdir/node/test.d.ts b/tests/baselines/reference/project/sourcemapSimpleNoOutdir/node/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/sourcemapSimpleNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/sourcemapSimpleNoOutdir/node/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcemapSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/sourcemapSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/sourcemapSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/sourcemapSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcemapSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/sourcemapSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/sourcemapSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/sourcemapSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcemapSubfolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/sourcemapSubfolderNoOutdir/amd/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/sourcemapSubfolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/sourcemapSubfolderNoOutdir/amd/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcemapSubfolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/sourcemapSubfolderNoOutdir/node/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/sourcemapSubfolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/sourcemapSubfolderNoOutdir/node/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcemapSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/sourcemapSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/sourcemapSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/sourcemapSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcemapSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/sourcemapSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/sourcemapSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/sourcemapSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcerootUrlMixedSubfolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/sourcerootUrlMixedSubfolderNoOutdir/amd/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/sourcerootUrlMixedSubfolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/sourcerootUrlMixedSubfolderNoOutdir/amd/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcerootUrlMixedSubfolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/sourcerootUrlMixedSubfolderNoOutdir/node/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/sourcerootUrlMixedSubfolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/sourcerootUrlMixedSubfolderNoOutdir/node/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcerootUrlMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/sourcerootUrlMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/sourcerootUrlMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/sourcerootUrlMixedSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcerootUrlMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/sourcerootUrlMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index a68782f6f7be0..eac3af459682f 100644
--- a/tests/baselines/reference/project/sourcerootUrlMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/sourcerootUrlMixedSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcerootUrlMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts b/tests/baselines/reference/project/sourcerootUrlMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
index 57ae3765ee2ac..d61b4c3b876cd 100644
--- a/tests/baselines/reference/project/sourcerootUrlMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
+++ b/tests/baselines/reference/project/sourcerootUrlMixedSubfolderSpecifyOutputFile/amd/bin/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../ref/m2.d.ts' />
+/// <reference path="../ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/sourcerootUrlMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts b/tests/baselines/reference/project/sourcerootUrlMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
index 57ae3765ee2ac..d61b4c3b876cd 100644
--- a/tests/baselines/reference/project/sourcerootUrlMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
+++ b/tests/baselines/reference/project/sourcerootUrlMixedSubfolderSpecifyOutputFile/node/bin/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../ref/m2.d.ts' />
+/// <reference path="../ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/sourcerootUrlMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts b/tests/baselines/reference/project/sourcerootUrlMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
index 21bf97b489f62..9b9cdd4a21417 100644
--- a/tests/baselines/reference/project/sourcerootUrlMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
+++ b/tests/baselines/reference/project/sourcerootUrlMixedSubfolderSpecifyOutputFileAndOutputDirectory/amd/bin/outAndOutDirFile.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../outdir/outAndOutDirFolder/ref/m2.d.ts' />
+/// <reference path="../outdir/outAndOutDirFolder/ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/sourcerootUrlMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts b/tests/baselines/reference/project/sourcerootUrlMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
index 21bf97b489f62..9b9cdd4a21417 100644
--- a/tests/baselines/reference/project/sourcerootUrlMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
+++ b/tests/baselines/reference/project/sourcerootUrlMixedSubfolderSpecifyOutputFileAndOutputDirectory/node/bin/outAndOutDirFile.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='../outdir/outAndOutDirFolder/ref/m2.d.ts' />
+/// <reference path="../outdir/outAndOutDirFolder/ref/m2.d.ts" />
 declare var m1_a1: number;
 declare class m1_c1 {
     m1_c1_p1: number;
diff --git a/tests/baselines/reference/project/sourcerootUrlMultifolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/sourcerootUrlMultifolderNoOutdir/amd/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/sourcerootUrlMultifolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/sourcerootUrlMultifolderNoOutdir/amd/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcerootUrlMultifolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/sourcerootUrlMultifolderNoOutdir/node/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/sourcerootUrlMultifolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/sourcerootUrlMultifolderNoOutdir/node/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcerootUrlMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts b/tests/baselines/reference/project/sourcerootUrlMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/sourcerootUrlMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
+++ b/tests/baselines/reference/project/sourcerootUrlMultifolderSpecifyOutputDirectory/amd/outdir/simple/outputdir_multifolder/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcerootUrlMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts b/tests/baselines/reference/project/sourcerootUrlMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
index 2124ba01aaacb..6f70f3fb1e4b3 100644
--- a/tests/baselines/reference/project/sourcerootUrlMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
+++ b/tests/baselines/reference/project/sourcerootUrlMultifolderSpecifyOutputDirectory/node/outdir/simple/outputdir_multifolder/test.d.ts
@@ -1,5 +1,5 @@
-/// <reference path='ref/m1.d.ts' />
-/// <reference path='../outputdir_multifolder_ref/m2.d.ts' />
+/// <reference path="ref/m1.d.ts" />
+/// <reference path="../outputdir_multifolder_ref/m2.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcerootUrlSimpleNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/sourcerootUrlSimpleNoOutdir/amd/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/sourcerootUrlSimpleNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/sourcerootUrlSimpleNoOutdir/amd/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcerootUrlSimpleNoOutdir/node/test.d.ts b/tests/baselines/reference/project/sourcerootUrlSimpleNoOutdir/node/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/sourcerootUrlSimpleNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/sourcerootUrlSimpleNoOutdir/node/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcerootUrlSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/sourcerootUrlSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/sourcerootUrlSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/sourcerootUrlSimpleSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcerootUrlSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/sourcerootUrlSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index 93979bd9e4bdd..35e3e535e907d 100644
--- a/tests/baselines/reference/project/sourcerootUrlSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/sourcerootUrlSimpleSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='m1.d.ts' />
+/// <reference path="m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcerootUrlSubfolderNoOutdir/amd/test.d.ts b/tests/baselines/reference/project/sourcerootUrlSubfolderNoOutdir/amd/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/sourcerootUrlSubfolderNoOutdir/amd/test.d.ts
+++ b/tests/baselines/reference/project/sourcerootUrlSubfolderNoOutdir/amd/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcerootUrlSubfolderNoOutdir/node/test.d.ts b/tests/baselines/reference/project/sourcerootUrlSubfolderNoOutdir/node/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/sourcerootUrlSubfolderNoOutdir/node/test.d.ts
+++ b/tests/baselines/reference/project/sourcerootUrlSubfolderNoOutdir/node/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcerootUrlSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts b/tests/baselines/reference/project/sourcerootUrlSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/sourcerootUrlSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/sourcerootUrlSubfolderSpecifyOutputDirectory/amd/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/project/sourcerootUrlSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts b/tests/baselines/reference/project/sourcerootUrlSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
index 1d82b46e2e9fb..bb24105deb156 100644
--- a/tests/baselines/reference/project/sourcerootUrlSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
+++ b/tests/baselines/reference/project/sourcerootUrlSubfolderSpecifyOutputDirectory/node/outdir/simple/test.d.ts
@@ -1,4 +1,4 @@
-/// <reference path='ref/m1.d.ts' />
+/// <reference path="ref/m1.d.ts" />
 declare var a1: number;
 declare class c1 {
     p1: number;
diff --git a/tests/baselines/reference/withImportDecl.js b/tests/baselines/reference/withImportDecl.js
index 1bc81826417d3..2f2abb0bcb0ae 100644
--- a/tests/baselines/reference/withImportDecl.js
+++ b/tests/baselines/reference/withImportDecl.js
@@ -86,4 +86,4 @@ export declare class A {
     foo: string;
 }
 //// [withImportDecl_1.d.ts]
-/// <reference path='withImportDecl_0.d.ts' />
+/// <reference path="withImportDecl_0.d.ts" />