diff --git a/src/compiler/emitter.ts b/src/compiler/emitter.ts
index d225a10254a..c934b723a4e 100644
--- a/src/compiler/emitter.ts
+++ b/src/compiler/emitter.ts
@@ -131,9 +131,9 @@ namespace ts {
         };
 
         function emitSourceFileOrBundle({ jsFilePath, sourceMapFilePath, declarationFilePath, declarationMapPath, buildInfoPath }: EmitFileNames, sourceFileOrBundle: SourceFile | Bundle) {
-            if (buildInfoPath && !emitOnlyDtsFiles) buildInfo = { js: [], dts: [], commonSourceDirectory: host.getCommonSourceDirectory() };
-            emitJsFileOrBundle(sourceFileOrBundle, jsFilePath, sourceMapFilePath, buildInfo && buildInfo.js);
-            emitDeclarationFileOrBundle(sourceFileOrBundle, declarationFilePath, declarationMapPath, buildInfo && buildInfo.dts);
+            if (buildInfoPath && !emitOnlyDtsFiles) buildInfo = { js: [], dts: [], commonSourceDirectory: host.getCommonSourceDirectory(), sources: {} };
+            emitJsFileOrBundle(sourceFileOrBundle, jsFilePath, sourceMapFilePath, buildInfo && { sections: buildInfo.js, sources: buildInfo.sources });
+            emitDeclarationFileOrBundle(sourceFileOrBundle, declarationFilePath, declarationMapPath, buildInfo && { sections: buildInfo.dts, sources: buildInfo.sources });
             // Write bundled offset information if applicable
             if (!emitOnlyDtsFiles && !emitSkipped && buildInfoPath) {
                 writeFile(host, emitterDiagnostics, buildInfoPath, JSON.stringify(buildInfo, undefined, 2), /*writeByteOrderMark*/ false);
@@ -316,7 +316,7 @@ namespace ts {
                     if (!writer.isAtStartOfLine()) writer.rawWrite(newLine);
                     const pos = writer.getTextPos();
                     writer.writeComment(`//# ${"sourceMappingURL"}=${sourceMappingURL}`); // Tools can sometimes see this line as a source mapping url comment
-                    if (bundleFileInfo) bundleFileInfo.push({ pos, end: writer.getTextPos(), kind: BundleFileSectionKind.SourceMapUrl });
+                    if (bundleFileInfo) bundleFileInfo.sections.push({ pos, end: writer.getTextPos(), kind: BundleFileSectionKind.SourceMapUrl });
                 }
 
                 // Write the source map
@@ -562,14 +562,17 @@ namespace ts {
                 writeLine();
                 const pos = getTextPosWithWriteLine();
                 print(EmitHint.Unspecified, prepend, /*sourceFile*/ undefined);
-                if (bundleFileInfo) bundleFileInfo.push({ pos, end: writer.getTextPos(), kind: BundleFileSectionKind.Prepend, data: (prepend as UnparsedSource).fileName });
+                if (bundleFileInfo) bundleFileInfo.sections.push({ pos, end: writer.getTextPos(), kind: BundleFileSectionKind.Prepend, data: (prepend as UnparsedSource).fileName });
             }
 
             const pos = getTextPosWithWriteLine();
             for (const sourceFile of bundle.sourceFiles) {
                 print(EmitHint.SourceFile, sourceFile, sourceFile);
             }
-            if (bundleFileInfo) bundleFileInfo.push({ pos, end: writer.getTextPos(), kind: BundleFileSectionKind.Text });
+            if (bundleFileInfo) {
+                bundleFileInfo.sections.push({ pos, end: writer.getTextPos(), kind: BundleFileSectionKind.Text });
+                // Source file metadata if needed later on
+            }
 
             reset();
             writer = previousWriter;
@@ -1182,7 +1185,7 @@ namespace ts {
                         else {
                             writeLines(helper.text(makeFileLevelOptimisticUniqueName));
                         }
-                        if (bundleFileInfo) bundleFileInfo.push({ pos, end: writer.getTextPos(), kind: BundleFileSectionKind.EmitHelpers, data: helper.name });
+                        if (bundleFileInfo) bundleFileInfo.sections.push({ pos, end: writer.getTextPos(), kind: BundleFileSectionKind.EmitHelpers, data: helper.name });
                         helpersEmitted = true;
                     }
                 }
@@ -2953,7 +2956,7 @@ namespace ts {
             if (hasNoDefaultLib) {
                 const pos = writer.getTextPos();
                 writeComment(`/// <reference no-default-lib="true"/>`);
-                if (bundleFileInfo) bundleFileInfo.push({ pos, end: writer.getTextPos(), kind: BundleFileSectionKind.NoDefaultLib });
+                if (bundleFileInfo) bundleFileInfo.sections.push({ pos, end: writer.getTextPos(), kind: BundleFileSectionKind.NoDefaultLib });
                 writeLine();
             }
             if (currentSourceFile && currentSourceFile.moduleName) {
@@ -2974,19 +2977,19 @@ namespace ts {
             for (const directive of files) {
                 const pos = writer.getTextPos();
                 writeComment(`/// <reference path="${directive.fileName}" />`);
-                if (bundleFileInfo) bundleFileInfo.push({ pos, end: writer.getTextPos(), kind: BundleFileSectionKind.Reference, data: directive.fileName });
+                if (bundleFileInfo) bundleFileInfo.sections.push({ pos, end: writer.getTextPos(), kind: BundleFileSectionKind.Reference, data: directive.fileName });
                 writeLine();
             }
             for (const directive of types) {
                 const pos = writer.getTextPos();
                 writeComment(`/// <reference types="${directive.fileName}" />`);
-                if (bundleFileInfo) bundleFileInfo.push({ pos, end: writer.getTextPos(), kind: BundleFileSectionKind.Type, data: directive.fileName });
+                if (bundleFileInfo) bundleFileInfo.sections.push({ pos, end: writer.getTextPos(), kind: BundleFileSectionKind.Type, data: directive.fileName });
                 writeLine();
             }
             for (const directive of libs) {
                 const pos = writer.getTextPos();
                 writeComment(`/// <reference lib="${directive.fileName}" />`);
-                if (bundleFileInfo) bundleFileInfo.push({ pos, end: writer.getTextPos(), kind: BundleFileSectionKind.Lib, data: directive.fileName });
+                if (bundleFileInfo) bundleFileInfo.sections.push({ pos, end: writer.getTextPos(), kind: BundleFileSectionKind.Lib, data: directive.fileName });
                 writeLine();
             }
         }
@@ -3030,7 +3033,7 @@ namespace ts {
                         writeLine();
                         const pos = writer.getTextPos();
                         emit(statement);
-                        if (bundleFileInfo) bundleFileInfo.push({ pos, end: writer.getTextPos(), kind: BundleFileSectionKind.Prologue, data: statement.expression.text });
+                        if (bundleFileInfo) bundleFileInfo.sections.push({ pos, end: writer.getTextPos(), kind: BundleFileSectionKind.Prologue, data: statement.expression.text });
                         if (seenPrologueDirectives) {
                             seenPrologueDirectives.set(statement.expression.text, true);
                         }
@@ -3051,7 +3054,7 @@ namespace ts {
                     writeLine();
                     const pos = writer.getTextPos();
                     emit(prologue);
-                    if (bundleFileInfo) bundleFileInfo.push({ pos, end: writer.getTextPos(), kind: BundleFileSectionKind.Prologue, data: prologue.data });
+                    if (bundleFileInfo) bundleFileInfo.sections.push({ pos, end: writer.getTextPos(), kind: BundleFileSectionKind.Prologue, data: prologue.data });
                     if (seenPrologueDirectives) {
                         seenPrologueDirectives.set(prologue.data, true);
                     }
diff --git a/src/compiler/types.ts b/src/compiler/types.ts
index 8066fe31077..25c77198255 100644
--- a/src/compiler/types.ts
+++ b/src/compiler/types.ts
@@ -5528,12 +5528,21 @@ namespace ts {
         BundleFileText | BundleFileSourceMapUrl;
 
     /*@internal*/
-    export type BundleFileInfo = BundleFileSection[];
+    export interface SourceFileInfo {
+    }
+
+    /*@internal*/
+    export interface BundleFileInfo {
+        sections: BundleFileSection[];
+        sources: SourceFileInfo;
+    }
+
     /* @internal */
     export interface BuildInfo {
-        js: BundleFileInfo;
-        dts: BundleFileInfo;
+        js: BundleFileSection[];
+        dts: BundleFileSection[];
         commonSourceDirectory: string;
+        sources: SourceFileInfo;
     }
 
     export interface PrintHandlers {
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/baseline-sectioned-sourcemaps.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/baseline-sectioned-sourcemaps.js
index 72e1e54c389..f2bd4d9dce3 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/baseline-sectioned-sourcemaps.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/baseline-sectioned-sourcemaps.js
@@ -24,7 +24,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -391,7 +392,8 @@ console.log(s);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/emitHelpers-in-all-projects.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/emitHelpers-in-all-projects.js
index 11607e39703..a32384c833f 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/emitHelpers-in-all-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/emitHelpers-in-all-projects.js
@@ -30,7 +30,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -496,7 +497,8 @@ const { b, ...rest } = { a: 10, b: 30, yy: 30 };
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/emitHelpers-in-only-one-dependency-project.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/emitHelpers-in-only-one-dependency-project.js
index 669df32f3d0..6698b82fd2f 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/emitHelpers-in-only-one-dependency-project.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/emitHelpers-in-only-one-dependency-project.js
@@ -24,7 +24,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -434,7 +435,8 @@ function forfirstfirst_PART1Rest() { }
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/multiple-emitHelpers-in-all-projects.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/multiple-emitHelpers-in-all-projects.js
index 9246e40f10a..32ee76a1244 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/multiple-emitHelpers-in-all-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/multiple-emitHelpers-in-all-projects.js
@@ -42,7 +42,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -693,7 +694,8 @@ const { b, ...rest } = { a: 10, b: 30, yy: 30 };
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/multiple-emitHelpers-in-different-projects.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/multiple-emitHelpers-in-different-projects.js
index ed6560487bb..d7e0e547163 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/multiple-emitHelpers-in-different-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/multiple-emitHelpers-in-different-projects.js
@@ -30,7 +30,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -508,7 +509,8 @@ const { b, ...rest } = { a: 10, b: 30, yy: 30 };
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/multiple-prologues-in-all-projects.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/multiple-prologues-in-all-projects.js
index 6b4ea289d57..807eae172aa 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/multiple-prologues-in-all-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/multiple-prologues-in-all-projects.js
@@ -36,7 +36,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -445,7 +446,8 @@ console.log(s);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/multiple-prologues-in-different-projects.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/multiple-prologues-in-different-projects.js
index 305cc2594c5..617b0a507bd 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/multiple-prologues-in-different-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/multiple-prologues-in-different-projects.js
@@ -30,7 +30,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -417,7 +418,8 @@ console.log(s);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/shebang-in-all-projects.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/shebang-in-all-projects.js
index 29329cd1715..89005d61977 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/shebang-in-all-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/shebang-in-all-projects.js
@@ -24,7 +24,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -399,7 +400,8 @@ console.log(s);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/shebang-in-only-one-dependency-project.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/shebang-in-only-one-dependency-project.js
index 41319b4ad6c..64b0a316dfa 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/shebang-in-only-one-dependency-project.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/shebang-in-only-one-dependency-project.js
@@ -24,7 +24,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -391,7 +392,8 @@ console.log(s);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/strict-in-all-projects.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/strict-in-all-projects.js
index 61f629d50c3..61f679fda22 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/strict-in-all-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/strict-in-all-projects.js
@@ -30,7 +30,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -405,7 +406,8 @@ console.log(s);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/strict-in-one-dependency.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/strict-in-one-dependency.js
index a7bc809fa03..a26ce28b0d3 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/strict-in-one-dependency.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/strict-in-one-dependency.js
@@ -24,7 +24,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -397,7 +398,8 @@ console.log(s);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/triple-slash-refs-in-all-projects.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/triple-slash-refs-in-all-projects.js
index c4ec2ca1da3..59d8b7e099d 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/triple-slash-refs-in-all-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/triple-slash-refs-in-all-projects.js
@@ -30,7 +30,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -472,7 +473,8 @@ console.log(s);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/triple-slash-refs-in-one-project.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/triple-slash-refs-in-one-project.js
index d9c99b64fe5..99785331044 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/triple-slash-refs-in-one-project.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/triple-slash-refs-in-one-project.js
@@ -24,7 +24,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -397,7 +398,8 @@ console.log(s);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/when-final-project-is-not-composite-but-uses-project-references.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/when-final-project-is-not-composite-but-uses-project-references.js
index 72e1e54c389..f2bd4d9dce3 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/when-final-project-is-not-composite-but-uses-project-references.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-changes/buildInfo/when-final-project-is-not-composite-but-uses-project-references.js
@@ -24,7 +24,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -391,7 +392,8 @@ console.log(s);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/baseline-sectioned-sourcemaps.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/baseline-sectioned-sourcemaps.js
index 0c61cc9833d..5c5ddf3d505 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/baseline-sectioned-sourcemaps.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/baseline-sectioned-sourcemaps.js
@@ -24,7 +24,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.js]
@@ -276,7 +277,8 @@ console.log(s);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.js]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/emitHelpers-in-all-projects.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/emitHelpers-in-all-projects.js
index 408eaa1c87c..b780822614c 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/emitHelpers-in-all-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/emitHelpers-in-all-projects.js
@@ -30,7 +30,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.js]
@@ -360,7 +361,8 @@ const { b, ...rest } = { a: 10, b: 30, yy: 30 };
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.js]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/emitHelpers-in-only-one-dependency-project.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/emitHelpers-in-only-one-dependency-project.js
index 0e513ac7f9b..6cc2fa7554e 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/emitHelpers-in-only-one-dependency-project.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/emitHelpers-in-only-one-dependency-project.js
@@ -24,7 +24,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.js]
@@ -300,7 +301,8 @@ function forfirstfirst_PART1Rest() { }console.log(s);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.js]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/multiple-emitHelpers-in-all-projects.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/multiple-emitHelpers-in-all-projects.js
index 813484db7bf..b883e60f929 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/multiple-emitHelpers-in-all-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/multiple-emitHelpers-in-all-projects.js
@@ -42,7 +42,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.js]
@@ -526,7 +527,8 @@ const { b, ...rest } = { a: 10, b: 30, yy: 30 };
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.js]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/multiple-emitHelpers-in-different-projects.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/multiple-emitHelpers-in-different-projects.js
index c56a1577b34..af0c117b743 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/multiple-emitHelpers-in-different-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/multiple-emitHelpers-in-different-projects.js
@@ -30,7 +30,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.js]
@@ -372,7 +373,8 @@ const { b, ...rest } = { a: 10, b: 30, yy: 30 };
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.js]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/multiple-prologues-in-all-projects.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/multiple-prologues-in-all-projects.js
index 3f865dc3616..6faff30b988 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/multiple-prologues-in-all-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/multiple-prologues-in-all-projects.js
@@ -36,7 +36,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.js]
@@ -329,7 +330,8 @@ console.log(s);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.js]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/multiple-prologues-in-different-projects.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/multiple-prologues-in-different-projects.js
index ddfa56eb126..3db458c9bf5 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/multiple-prologues-in-different-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/multiple-prologues-in-different-projects.js
@@ -30,7 +30,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.js]
@@ -302,7 +303,8 @@ console.log(s);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.js]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/shebang-in-all-projects.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/shebang-in-all-projects.js
index 2adac79013e..27e774a02b0 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/shebang-in-all-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/shebang-in-all-projects.js
@@ -24,7 +24,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.js]
@@ -281,7 +282,8 @@ console.log(s);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.js]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/shebang-in-only-one-dependency-project.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/shebang-in-only-one-dependency-project.js
index 691c7b8509f..9c9c306efd0 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/shebang-in-only-one-dependency-project.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/shebang-in-only-one-dependency-project.js
@@ -24,7 +24,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.js]
@@ -276,7 +277,8 @@ console.log(s);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.js]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/strict-in-all-projects.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/strict-in-all-projects.js
index f09d0b8ad86..b772bfc075e 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/strict-in-all-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/strict-in-all-projects.js
@@ -30,7 +30,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.js]
@@ -290,7 +291,8 @@ console.log(s);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.js]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/strict-in-one-dependency.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/strict-in-one-dependency.js
index aefb1ae0dc8..8805579b1ff 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/strict-in-one-dependency.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/strict-in-one-dependency.js
@@ -24,7 +24,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.js]
@@ -282,7 +283,8 @@ console.log(s);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.js]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/triple-slash-refs-in-all-projects.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/triple-slash-refs-in-all-projects.js
index 697d86b69d6..f5478ebcafe 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/triple-slash-refs-in-all-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/triple-slash-refs-in-all-projects.js
@@ -30,7 +30,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.js]
@@ -329,7 +330,8 @@ console.log(s);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.js]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/triple-slash-refs-in-one-project.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/triple-slash-refs-in-one-project.js
index eaa2446743e..967d55e8147 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/triple-slash-refs-in-one-project.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/triple-slash-refs-in-one-project.js
@@ -24,7 +24,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.js]
@@ -282,7 +283,8 @@ console.log(s);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.js]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/when-final-project-is-not-composite-but-uses-project-references.js b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/when-final-project-is-not-composite-but-uses-project-references.js
index 0c61cc9833d..5c5ddf3d505 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/when-final-project-is-not-composite-but-uses-project-references.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-declaration-doesnt-change/buildInfo/when-final-project-is-not-composite-but-uses-project-references.js
@@ -24,7 +24,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.js]
@@ -276,7 +277,8 @@ console.log(s);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.js]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/emitHelpers-in-all-projects.js b/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/emitHelpers-in-all-projects.js
index 9b9c17b7b2b..1ac6631bb80 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/emitHelpers-in-all-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/emitHelpers-in-all-projects.js
@@ -24,7 +24,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts.map]
@@ -422,7 +423,8 @@ function forfirstfirst_PART1Rest() { }
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts.map]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/emitHelpers-in-only-one-dependency-project.js b/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/emitHelpers-in-only-one-dependency-project.js
index b0701bb00d4..36cfd84683c 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/emitHelpers-in-only-one-dependency-project.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/emitHelpers-in-only-one-dependency-project.js
@@ -30,7 +30,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts.map]
@@ -484,7 +485,8 @@ const { b, ...rest } = { a: 10, b: 30, yy: 30 };
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts.map]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/multiple-emitHelpers-in-all-projects.js b/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/multiple-emitHelpers-in-all-projects.js
index f85f38aa71a..02680e1a053 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/multiple-emitHelpers-in-all-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/multiple-emitHelpers-in-all-projects.js
@@ -36,7 +36,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts.map]
@@ -618,7 +619,8 @@ function forfirstfirst_PART1Rest() { }
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts.map]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/multiple-emitHelpers-in-different-projects.js b/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/multiple-emitHelpers-in-different-projects.js
index 20f337067ff..01da4e074f8 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/multiple-emitHelpers-in-different-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/multiple-emitHelpers-in-different-projects.js
@@ -24,7 +24,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts.map]
@@ -434,7 +435,8 @@ function forfirstfirst_PART1Rest() { }
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts.map]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/multiple-prologues-in-all-projects.js b/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/multiple-prologues-in-all-projects.js
index b2799e902c7..af1a302d59b 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/multiple-prologues-in-all-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/multiple-prologues-in-all-projects.js
@@ -42,7 +42,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts.map]
@@ -461,7 +462,8 @@ console.log(s);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts.map]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/multiple-prologues-in-different-projects.js b/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/multiple-prologues-in-different-projects.js
index 571b1a8619e..b5407cc7e5d 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/multiple-prologues-in-different-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/multiple-prologues-in-different-projects.js
@@ -36,7 +36,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts.map]
@@ -434,7 +435,8 @@ console.log(s);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts.map]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/strict-in-all-projects.js b/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/strict-in-all-projects.js
index b4799143298..6306cb82962 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/strict-in-all-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/strict-in-all-projects.js
@@ -36,7 +36,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts.map]
@@ -422,7 +423,8 @@ console.log(s);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts.map]
diff --git a/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/strict-in-one-dependency.js b/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/strict-in-one-dependency.js
index 41455f579ef..8c9150862dd 100644
--- a/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/strict-in-one-dependency.js
+++ b/tests/baselines/reference/tsbuild/outFile/incremental-headers-change/buildInfo/strict-in-one-dependency.js
@@ -30,7 +30,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts.map]
@@ -414,7 +415,8 @@ console.log(s);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts.map]
diff --git a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/baseline-sectioned-sourcemaps.js b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/baseline-sectioned-sourcemaps.js
index c2d6e8e8827..b764c449559 100644
--- a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/baseline-sectioned-sourcemaps.js
+++ b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/baseline-sectioned-sourcemaps.js
@@ -24,7 +24,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/second/"
+  "commonSourceDirectory": "/src/second/",
+  "sources": {}
 }
 
 //// [/src/2/second-output.d.ts]
@@ -438,7 +439,8 @@ sourceFile:../second/second_part2.ts
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -791,7 +793,8 @@ sourceFile:../first_part3.ts
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/emitHelpers-in-all-projects.js b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/emitHelpers-in-all-projects.js
index ca76edcb0e0..0ef10cf99fc 100644
--- a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/emitHelpers-in-all-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/emitHelpers-in-all-projects.js
@@ -30,7 +30,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/second/"
+  "commonSourceDirectory": "/src/second/",
+  "sources": {}
 }
 
 //// [/src/2/second-output.d.ts]
@@ -539,7 +540,8 @@ sourceFile:../second/second_part2.ts
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -1021,7 +1023,8 @@ const { b, ...rest } = { a: 10, b: 30, yy: 30 };
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/emitHelpers-in-only-one-dependency-project.js b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/emitHelpers-in-only-one-dependency-project.js
index f5f3ad0a4c2..a2725903e39 100644
--- a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/emitHelpers-in-only-one-dependency-project.js
+++ b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/emitHelpers-in-only-one-dependency-project.js
@@ -30,7 +30,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/second/"
+  "commonSourceDirectory": "/src/second/",
+  "sources": {}
 }
 
 //// [/src/2/second-output.d.ts]
@@ -533,7 +534,8 @@ sourceFile:../second/second_part2.ts
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -959,7 +961,8 @@ const { b, ...rest } = { a: 10, b: 30, yy: 30 };
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/multiple-emitHelpers-in-all-projects.js b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/multiple-emitHelpers-in-all-projects.js
index 4be82144eda..937f056b7c7 100644
--- a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/multiple-emitHelpers-in-all-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/multiple-emitHelpers-in-all-projects.js
@@ -42,7 +42,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/second/"
+  "commonSourceDirectory": "/src/second/",
+  "sources": {}
 }
 
 //// [/src/2/second-output.d.ts]
@@ -738,7 +739,8 @@ sourceFile:../second/second_part2.ts
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -1464,7 +1466,8 @@ secondsecond_part2Spread(...[10, 20, 30]);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/multiple-emitHelpers-in-different-projects.js b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/multiple-emitHelpers-in-different-projects.js
index d40d8e4bb59..f95dd8282e6 100644
--- a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/multiple-emitHelpers-in-different-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/multiple-emitHelpers-in-different-projects.js
@@ -36,7 +36,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/second/"
+  "commonSourceDirectory": "/src/second/",
+  "sources": {}
 }
 
 //// [/src/2/second-output.d.ts]
@@ -631,7 +632,8 @@ sourceFile:../second/second_part2.ts
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -1144,7 +1146,8 @@ secondsecond_part1Spread(...[10, 20, 30]);
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/multiple-prologues-in-all-projects.js b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/multiple-prologues-in-all-projects.js
index 5bdcce80d2e..c867790361a 100644
--- a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/multiple-prologues-in-all-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/multiple-prologues-in-all-projects.js
@@ -42,7 +42,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/second/"
+  "commonSourceDirectory": "/src/second/",
+  "sources": {}
 }
 
 //// [/src/2/second-output.d.ts]
@@ -507,7 +508,8 @@ sourceFile:../second/second_part2.ts
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -980,7 +982,8 @@ class C {
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/multiple-prologues-in-different-projects.js b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/multiple-prologues-in-different-projects.js
index e79910a6e71..408eb6c98c4 100644
--- a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/multiple-prologues-in-different-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/multiple-prologues-in-different-projects.js
@@ -36,7 +36,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/second/"
+  "commonSourceDirectory": "/src/second/",
+  "sources": {}
 }
 
 //// [/src/2/second-output.d.ts]
@@ -493,7 +494,8 @@ sourceFile:../second/second_part2.ts
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -912,7 +914,8 @@ class C {
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/shebang-in-all-projects.js b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/shebang-in-all-projects.js
index 8992996ae66..be48b704844 100644
--- a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/shebang-in-all-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/shebang-in-all-projects.js
@@ -24,7 +24,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/second/"
+  "commonSourceDirectory": "/src/second/",
+  "sources": {}
 }
 
 //// [/src/2/second-output.d.ts]
@@ -444,7 +445,8 @@ sourceFile:../second/second_part2.ts
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -839,7 +841,8 @@ namespace N {
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/shebang-in-only-one-dependency-project.js b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/shebang-in-only-one-dependency-project.js
index e40f051d5c0..59c7b69c8b0 100644
--- a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/shebang-in-only-one-dependency-project.js
+++ b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/shebang-in-only-one-dependency-project.js
@@ -24,7 +24,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/second/"
+  "commonSourceDirectory": "/src/second/",
+  "sources": {}
 }
 
 //// [/src/2/second-output.d.ts]
@@ -444,7 +445,8 @@ sourceFile:../second/second_part2.ts
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -812,7 +814,8 @@ namespace N {
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/strict-in-all-projects.js b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/strict-in-all-projects.js
index e6942131bb0..1cbf24781f2 100644
--- a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/strict-in-all-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/strict-in-all-projects.js
@@ -30,7 +30,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/second/"
+  "commonSourceDirectory": "/src/second/",
+  "sources": {}
 }
 
 //// [/src/2/second-output.d.ts]
@@ -452,7 +453,8 @@ sourceFile:../second/second_part2.ts
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -853,7 +855,8 @@ sourceFile:../first_part3.ts
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/strict-in-one-dependency.js b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/strict-in-one-dependency.js
index 6dbc9e86b09..1249aab723c 100644
--- a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/strict-in-one-dependency.js
+++ b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/strict-in-one-dependency.js
@@ -30,7 +30,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/second/"
+  "commonSourceDirectory": "/src/second/",
+  "sources": {}
 }
 
 //// [/src/2/second-output.d.ts]
@@ -446,7 +447,8 @@ sourceFile:../second/second_part2.ts
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -823,7 +825,8 @@ sourceFile:../first_part3.ts
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/triple-slash-refs-in-all-projects.js b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/triple-slash-refs-in-all-projects.js
index af56212d407..09c66ce4f3b 100644
--- a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/triple-slash-refs-in-all-projects.js
+++ b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/triple-slash-refs-in-all-projects.js
@@ -30,7 +30,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/second/"
+  "commonSourceDirectory": "/src/second/",
+  "sources": {}
 }
 
 //// [/src/2/second-output.d.ts]
@@ -504,7 +505,8 @@ sourceFile:../second/second_part2.ts
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -960,7 +962,8 @@ declare class secondsecond_part1 { }
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/triple-slash-refs-in-one-project.js b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/triple-slash-refs-in-one-project.js
index 72686322333..58151e980b9 100644
--- a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/triple-slash-refs-in-one-project.js
+++ b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/triple-slash-refs-in-one-project.js
@@ -30,7 +30,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/second/"
+  "commonSourceDirectory": "/src/second/",
+  "sources": {}
 }
 
 //// [/src/2/second-output.d.ts]
@@ -498,7 +499,8 @@ sourceFile:../second/second_part2.ts
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -876,7 +878,8 @@ declare class secondsecond_part1 { }
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]
diff --git a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/when-final-project-is-not-composite-but-uses-project-references.js b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/when-final-project-is-not-composite-but-uses-project-references.js
index 317d258f82f..3a9e82dd6d3 100644
--- a/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/when-final-project-is-not-composite-but-uses-project-references.js
+++ b/tests/baselines/reference/tsbuild/outFile/initial-Build/buildInfo/when-final-project-is-not-composite-but-uses-project-references.js
@@ -24,7 +24,8 @@
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/second/"
+  "commonSourceDirectory": "/src/second/",
+  "sources": {}
 }
 
 //// [/src/2/second-output.d.ts]
@@ -438,7 +439,8 @@ sourceFile:../second/second_part2.ts
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/first/"
+  "commonSourceDirectory": "/src/first/",
+  "sources": {}
 }
 
 //// [/src/first/bin/first-output.d.ts]
@@ -791,7 +793,8 @@ sourceFile:../first_part3.ts
       "kind": "sourceMapUrl"
     }
   ],
-  "commonSourceDirectory": "/src/third/"
+  "commonSourceDirectory": "/src/third/",
+  "sources": {}
 }
 
 //// [/src/third/thirdjs/output/third-output.d.ts]