diff --git a/src/testRunner/unittests/tsbuild/helpers.ts b/src/testRunner/unittests/tsbuild/helpers.ts
index 538ebd75cd..6c6510cd7b 100644
--- a/src/testRunner/unittests/tsbuild/helpers.ts
+++ b/src/testRunner/unittests/tsbuild/helpers.ts
@@ -62,31 +62,26 @@ namespace ts {
         }
     }
 
+    const libContent = `${TestFSWithWatch.libFile.content}
+interface ReadonlyArray<T> {}
+declare const console: { log(msg: any): void; };`;
+
     export function loadProjectFromDisk(root: string, time?: vfs.FileSystemOptions["time"]): vfs.FileSystem {
         const resolver = vfs.createResolver(Harness.IO);
         const fs = new vfs.FileSystem(/*ignoreCase*/ true, {
             files: {
-                ["/lib"]: new vfs.Mount(vpath.resolve(Harness.IO.getWorkspaceRoot(), "built/local"), resolver),
                 ["/src"]: new vfs.Mount(vpath.resolve(Harness.IO.getWorkspaceRoot(), root), resolver)
             },
             cwd: "/",
             meta: { defaultLibLocation: "/lib" },
             time
         });
+        fs.mkdirSync("/lib");
+        fs.writeFileSync("/lib/lib.d.ts", libContent);
         fs.makeReadonly();
         return fs;
     }
 
-    export function getLibs() {
-        return [
-            "/lib/lib.d.ts",
-            "/lib/lib.es5.d.ts",
-            "/lib/lib.dom.d.ts",
-            "/lib/lib.webworker.importscripts.d.ts",
-            "/lib/lib.scripthost.d.ts"
-        ];
-    }
-
     function generateSourceMapBaselineFiles(fs: vfs.FileSystem, mapFileNames: ReadonlyArray<string>) {
         for (const mapFile of mapFileNames) {
             if (!fs.existsSync(mapFile)) continue;
diff --git a/src/testRunner/unittests/tsbuild/sample.ts b/src/testRunner/unittests/tsbuild/sample.ts
index ab9210451a..6e31ada9ee 100644
--- a/src/testRunner/unittests/tsbuild/sample.ts
+++ b/src/testRunner/unittests/tsbuild/sample.ts
@@ -399,14 +399,14 @@ export class cNew {}`);
                 const builder = createSolutionBuilder(host, ["/src/tests"], { listFiles: true });
                 builder.buildAllProjects();
                 assert.deepEqual(host.traces, [
-                    ...getLibs(),
+                    "/lib/lib.d.ts",
                     "/src/core/anotherModule.ts",
                     "/src/core/index.ts",
                     "/src/core/some_decl.d.ts",
-                    ...getLibs(),
+                    "/lib/lib.d.ts",
                     ...getCoreOutputs(),
                     "/src/logic/index.ts",
-                    ...getLibs(),
+                    "/lib/lib.d.ts",
                     ...getCoreOutputs(),
                     "/src/logic/index.d.ts",
                     "/src/tests/index.ts"
diff --git a/src/testRunner/unittests/tsbuild/transitiveReferences.ts b/src/testRunner/unittests/tsbuild/transitiveReferences.ts
index 7944d1fda0..30e28de8cd 100644
--- a/src/testRunner/unittests/tsbuild/transitiveReferences.ts
+++ b/src/testRunner/unittests/tsbuild/transitiveReferences.ts
@@ -7,12 +7,12 @@ namespace ts {
             "/src/c.js"
         ];
         const expectedFileTraces = [
-            ...getLibs(),
+            "/lib/lib.d.ts",
             "/src/a.ts",
-            ...getLibs(),
+            "/lib/lib.d.ts",
             "/src/a.d.ts",
             "/src/b.ts",
-            ...getLibs(),
+            "/lib/lib.d.ts",
             "/src/a.d.ts",
             "/src/b.d.ts",
             "/src/refs/a.d.ts",
@@ -63,9 +63,9 @@ export const b = new A();`);
             // Error in b build only a
             const allExpectedOutputs = ["/src/a.js", "/src/a.d.ts"];
             const expectedFileTraces = [
-                ...getLibs(),
+                "/lib/lib.d.ts",
                 "/src/a.ts",
-                ...getLibs(),
+                "/lib/lib.d.ts",
                 "/src/b.ts"
             ];
             verifyBuild(fs => modifyFsBTsToNonRelativeImport(fs, "node"),
diff --git a/tests/baselines/reference/tsbuild/sample1/incremental-declaration-changes/sample.js b/tests/baselines/reference/tsbuild/sample1/incremental-declaration-changes/sample.js
index c1274f3f49..02f3fe6e91 100644
--- a/tests/baselines/reference/tsbuild/sample1/incremental-declaration-changes/sample.js
+++ b/tests/baselines/reference/tsbuild/sample1/incremental-declaration-changes/sample.js
@@ -175,22 +175,6 @@ export class someClass { }
         "version": "/lib/lib.d.ts",
         "signature": "/lib/lib.d.ts"
       },
-      "/lib/lib.es5.d.ts": {
-        "version": "/lib/lib.es5.d.ts",
-        "signature": "/lib/lib.es5.d.ts"
-      },
-      "/lib/lib.dom.d.ts": {
-        "version": "/lib/lib.dom.d.ts",
-        "signature": "/lib/lib.dom.d.ts"
-      },
-      "/lib/lib.webworker.importscripts.d.ts": {
-        "version": "/lib/lib.webworker.importscripts.d.ts",
-        "signature": "/lib/lib.webworker.importscripts.d.ts"
-      },
-      "/lib/lib.scripthost.d.ts": {
-        "version": "/lib/lib.scripthost.d.ts",
-        "signature": "/lib/lib.scripthost.d.ts"
-      },
       "/src/core/anothermodule.ts": {
         "version": "-2676574883",
         "signature": "25219880154"
@@ -215,10 +199,6 @@ export class someClass { }
     "exportedModulesMap": {},
     "semanticDiagnosticsPerFile": [
       "/lib/lib.d.ts",
-      "/lib/lib.dom.d.ts",
-      "/lib/lib.es5.d.ts",
-      "/lib/lib.scripthost.d.ts",
-      "/lib/lib.webworker.importscripts.d.ts",
       "/src/core/anothermodule.ts",
       "/src/core/index.ts",
       "/src/core/some_decl.d.ts"
@@ -235,22 +215,6 @@ export class someClass { }
         "version": "/lib/lib.d.ts",
         "signature": "/lib/lib.d.ts"
       },
-      "/lib/lib.es5.d.ts": {
-        "version": "/lib/lib.es5.d.ts",
-        "signature": "/lib/lib.es5.d.ts"
-      },
-      "/lib/lib.dom.d.ts": {
-        "version": "/lib/lib.dom.d.ts",
-        "signature": "/lib/lib.dom.d.ts"
-      },
-      "/lib/lib.webworker.importscripts.d.ts": {
-        "version": "/lib/lib.webworker.importscripts.d.ts",
-        "signature": "/lib/lib.webworker.importscripts.d.ts"
-      },
-      "/lib/lib.scripthost.d.ts": {
-        "version": "/lib/lib.scripthost.d.ts",
-        "signature": "/lib/lib.scripthost.d.ts"
-      },
       "/src/core/index.ts": {
         "version": "-2069755619",
         "signature": "-2069755619"
@@ -285,10 +249,6 @@ export class someClass { }
     },
     "semanticDiagnosticsPerFile": [
       "/lib/lib.d.ts",
-      "/lib/lib.dom.d.ts",
-      "/lib/lib.es5.d.ts",
-      "/lib/lib.scripthost.d.ts",
-      "/lib/lib.webworker.importscripts.d.ts",
       "/src/core/anothermodule.ts",
       "/src/core/index.ts",
       "/src/logic/index.ts"
@@ -305,22 +265,6 @@ export class someClass { }
         "version": "/lib/lib.d.ts",
         "signature": "/lib/lib.d.ts"
       },
-      "/lib/lib.es5.d.ts": {
-        "version": "/lib/lib.es5.d.ts",
-        "signature": "/lib/lib.es5.d.ts"
-      },
-      "/lib/lib.dom.d.ts": {
-        "version": "/lib/lib.dom.d.ts",
-        "signature": "/lib/lib.dom.d.ts"
-      },
-      "/lib/lib.webworker.importscripts.d.ts": {
-        "version": "/lib/lib.webworker.importscripts.d.ts",
-        "signature": "/lib/lib.webworker.importscripts.d.ts"
-      },
-      "/lib/lib.scripthost.d.ts": {
-        "version": "/lib/lib.scripthost.d.ts",
-        "signature": "/lib/lib.scripthost.d.ts"
-      },
       "/src/core/index.ts": {
         "version": "-2069755619",
         "signature": "-2069755619"
@@ -365,10 +309,6 @@ export class someClass { }
     },
     "semanticDiagnosticsPerFile": [
       "/lib/lib.d.ts",
-      "/lib/lib.dom.d.ts",
-      "/lib/lib.es5.d.ts",
-      "/lib/lib.scripthost.d.ts",
-      "/lib/lib.webworker.importscripts.d.ts",
       "/src/core/anothermodule.ts",
       "/src/core/index.ts",
       "/src/logic/index.ts",
diff --git a/tests/baselines/reference/tsbuild/sample1/incremental-declaration-changes/when-declaration-option-changes.js b/tests/baselines/reference/tsbuild/sample1/incremental-declaration-changes/when-declaration-option-changes.js
index ad16296e10..43e463e4d6 100644
--- a/tests/baselines/reference/tsbuild/sample1/incremental-declaration-changes/when-declaration-option-changes.js
+++ b/tests/baselines/reference/tsbuild/sample1/incremental-declaration-changes/when-declaration-option-changes.js
@@ -24,22 +24,6 @@ export declare function multiply(a: number, b: number): number;
         "version": "/lib/lib.d.ts",
         "signature": "/lib/lib.d.ts"
       },
-      "/lib/lib.es5.d.ts": {
-        "version": "/lib/lib.es5.d.ts",
-        "signature": "/lib/lib.es5.d.ts"
-      },
-      "/lib/lib.dom.d.ts": {
-        "version": "/lib/lib.dom.d.ts",
-        "signature": "/lib/lib.dom.d.ts"
-      },
-      "/lib/lib.webworker.importscripts.d.ts": {
-        "version": "/lib/lib.webworker.importscripts.d.ts",
-        "signature": "/lib/lib.webworker.importscripts.d.ts"
-      },
-      "/lib/lib.scripthost.d.ts": {
-        "version": "/lib/lib.scripthost.d.ts",
-        "signature": "/lib/lib.scripthost.d.ts"
-      },
       "/src/core/anothermodule.ts": {
         "version": "-2676574883",
         "signature": "-8396256275"
@@ -63,10 +47,6 @@ export declare function multiply(a: number, b: number): number;
     "exportedModulesMap": {},
     "semanticDiagnosticsPerFile": [
       "/lib/lib.d.ts",
-      "/lib/lib.dom.d.ts",
-      "/lib/lib.es5.d.ts",
-      "/lib/lib.scripthost.d.ts",
-      "/lib/lib.webworker.importscripts.d.ts",
       "/src/core/anothermodule.ts",
       "/src/core/index.ts",
       "/src/core/some_decl.d.ts"
diff --git a/tests/baselines/reference/tsbuild/sample1/incremental-declaration-changes/when-logic-config-changes-declaration-dir.js b/tests/baselines/reference/tsbuild/sample1/incremental-declaration-changes/when-logic-config-changes-declaration-dir.js
index 3412d1c89a..2189fcd394 100644
--- a/tests/baselines/reference/tsbuild/sample1/incremental-declaration-changes/when-logic-config-changes-declaration-dir.js
+++ b/tests/baselines/reference/tsbuild/sample1/incremental-declaration-changes/when-logic-config-changes-declaration-dir.js
@@ -28,22 +28,6 @@ export declare const m: typeof mod;
         "version": "/lib/lib.d.ts",
         "signature": "/lib/lib.d.ts"
       },
-      "/lib/lib.es5.d.ts": {
-        "version": "/lib/lib.es5.d.ts",
-        "signature": "/lib/lib.es5.d.ts"
-      },
-      "/lib/lib.dom.d.ts": {
-        "version": "/lib/lib.dom.d.ts",
-        "signature": "/lib/lib.dom.d.ts"
-      },
-      "/lib/lib.webworker.importscripts.d.ts": {
-        "version": "/lib/lib.webworker.importscripts.d.ts",
-        "signature": "/lib/lib.webworker.importscripts.d.ts"
-      },
-      "/lib/lib.scripthost.d.ts": {
-        "version": "/lib/lib.scripthost.d.ts",
-        "signature": "/lib/lib.scripthost.d.ts"
-      },
       "/src/core/index.ts": {
         "version": "-13851440507",
         "signature": "-13851440507"
@@ -79,10 +63,6 @@ export declare const m: typeof mod;
     },
     "semanticDiagnosticsPerFile": [
       "/lib/lib.d.ts",
-      "/lib/lib.dom.d.ts",
-      "/lib/lib.es5.d.ts",
-      "/lib/lib.scripthost.d.ts",
-      "/lib/lib.webworker.importscripts.d.ts",
       "/src/core/anothermodule.ts",
       "/src/core/index.ts",
       "/src/logic/index.ts"
@@ -99,22 +79,6 @@ export declare const m: typeof mod;
         "version": "/lib/lib.d.ts",
         "signature": "/lib/lib.d.ts"
       },
-      "/lib/lib.es5.d.ts": {
-        "version": "/lib/lib.es5.d.ts",
-        "signature": "/lib/lib.es5.d.ts"
-      },
-      "/lib/lib.dom.d.ts": {
-        "version": "/lib/lib.dom.d.ts",
-        "signature": "/lib/lib.dom.d.ts"
-      },
-      "/lib/lib.webworker.importscripts.d.ts": {
-        "version": "/lib/lib.webworker.importscripts.d.ts",
-        "signature": "/lib/lib.webworker.importscripts.d.ts"
-      },
-      "/lib/lib.scripthost.d.ts": {
-        "version": "/lib/lib.scripthost.d.ts",
-        "signature": "/lib/lib.scripthost.d.ts"
-      },
       "/src/core/index.ts": {
         "version": "-13851440507",
         "signature": "-13851440507"
@@ -159,10 +123,6 @@ export declare const m: typeof mod;
     },
     "semanticDiagnosticsPerFile": [
       "/lib/lib.d.ts",
-      "/lib/lib.dom.d.ts",
-      "/lib/lib.es5.d.ts",
-      "/lib/lib.scripthost.d.ts",
-      "/lib/lib.webworker.importscripts.d.ts",
       "/src/core/anothermodule.ts",
       "/src/core/index.ts",
       "/src/logic/index.ts",
diff --git a/tests/baselines/reference/tsbuild/sample1/incremental-declaration-doesnt-change/sample.js b/tests/baselines/reference/tsbuild/sample1/incremental-declaration-doesnt-change/sample.js
index 85fcc62cfc..cee10f6866 100644
--- a/tests/baselines/reference/tsbuild/sample1/incremental-declaration-doesnt-change/sample.js
+++ b/tests/baselines/reference/tsbuild/sample1/incremental-declaration-doesnt-change/sample.js
@@ -28,22 +28,6 @@ class someClass { }
         "version": "/lib/lib.d.ts",
         "signature": "/lib/lib.d.ts"
       },
-      "/lib/lib.es5.d.ts": {
-        "version": "/lib/lib.es5.d.ts",
-        "signature": "/lib/lib.es5.d.ts"
-      },
-      "/lib/lib.dom.d.ts": {
-        "version": "/lib/lib.dom.d.ts",
-        "signature": "/lib/lib.dom.d.ts"
-      },
-      "/lib/lib.webworker.importscripts.d.ts": {
-        "version": "/lib/lib.webworker.importscripts.d.ts",
-        "signature": "/lib/lib.webworker.importscripts.d.ts"
-      },
-      "/lib/lib.scripthost.d.ts": {
-        "version": "/lib/lib.scripthost.d.ts",
-        "signature": "/lib/lib.scripthost.d.ts"
-      },
       "/src/core/anothermodule.ts": {
         "version": "-2676574883",
         "signature": "25219880154"
@@ -68,10 +52,6 @@ class someClass { }
     "exportedModulesMap": {},
     "semanticDiagnosticsPerFile": [
       "/lib/lib.d.ts",
-      "/lib/lib.dom.d.ts",
-      "/lib/lib.es5.d.ts",
-      "/lib/lib.scripthost.d.ts",
-      "/lib/lib.webworker.importscripts.d.ts",
       "/src/core/anothermodule.ts",
       "/src/core/index.ts",
       "/src/core/some_decl.d.ts"
diff --git a/tests/baselines/reference/tsbuild/sample1/initial-Build/sample.js b/tests/baselines/reference/tsbuild/sample1/initial-Build/sample.js
index 21e8c9b820..2d22389340 100644
--- a/tests/baselines/reference/tsbuild/sample1/initial-Build/sample.js
+++ b/tests/baselines/reference/tsbuild/sample1/initial-Build/sample.js
@@ -188,22 +188,6 @@ exports.multiply = multiply;
         "version": "/lib/lib.d.ts",
         "signature": "/lib/lib.d.ts"
       },
-      "/lib/lib.es5.d.ts": {
-        "version": "/lib/lib.es5.d.ts",
-        "signature": "/lib/lib.es5.d.ts"
-      },
-      "/lib/lib.dom.d.ts": {
-        "version": "/lib/lib.dom.d.ts",
-        "signature": "/lib/lib.dom.d.ts"
-      },
-      "/lib/lib.webworker.importscripts.d.ts": {
-        "version": "/lib/lib.webworker.importscripts.d.ts",
-        "signature": "/lib/lib.webworker.importscripts.d.ts"
-      },
-      "/lib/lib.scripthost.d.ts": {
-        "version": "/lib/lib.scripthost.d.ts",
-        "signature": "/lib/lib.scripthost.d.ts"
-      },
       "/src/core/anothermodule.ts": {
         "version": "-2676574883",
         "signature": "25219880154"
@@ -228,10 +212,6 @@ exports.multiply = multiply;
     "exportedModulesMap": {},
     "semanticDiagnosticsPerFile": [
       "/lib/lib.d.ts",
-      "/lib/lib.dom.d.ts",
-      "/lib/lib.es5.d.ts",
-      "/lib/lib.scripthost.d.ts",
-      "/lib/lib.webworker.importscripts.d.ts",
       "/src/core/anothermodule.ts",
       "/src/core/index.ts",
       "/src/core/some_decl.d.ts"
@@ -393,22 +373,6 @@ sourceFile:index.ts
         "version": "/lib/lib.d.ts",
         "signature": "/lib/lib.d.ts"
       },
-      "/lib/lib.es5.d.ts": {
-        "version": "/lib/lib.es5.d.ts",
-        "signature": "/lib/lib.es5.d.ts"
-      },
-      "/lib/lib.dom.d.ts": {
-        "version": "/lib/lib.dom.d.ts",
-        "signature": "/lib/lib.dom.d.ts"
-      },
-      "/lib/lib.webworker.importscripts.d.ts": {
-        "version": "/lib/lib.webworker.importscripts.d.ts",
-        "signature": "/lib/lib.webworker.importscripts.d.ts"
-      },
-      "/lib/lib.scripthost.d.ts": {
-        "version": "/lib/lib.scripthost.d.ts",
-        "signature": "/lib/lib.scripthost.d.ts"
-      },
       "/src/core/index.ts": {
         "version": "-13851440507",
         "signature": "-13851440507"
@@ -443,10 +407,6 @@ sourceFile:index.ts
     },
     "semanticDiagnosticsPerFile": [
       "/lib/lib.d.ts",
-      "/lib/lib.dom.d.ts",
-      "/lib/lib.es5.d.ts",
-      "/lib/lib.scripthost.d.ts",
-      "/lib/lib.webworker.importscripts.d.ts",
       "/src/core/anothermodule.ts",
       "/src/core/index.ts",
       "/src/logic/index.ts"
@@ -479,22 +439,6 @@ exports.m = mod;
         "version": "/lib/lib.d.ts",
         "signature": "/lib/lib.d.ts"
       },
-      "/lib/lib.es5.d.ts": {
-        "version": "/lib/lib.es5.d.ts",
-        "signature": "/lib/lib.es5.d.ts"
-      },
-      "/lib/lib.dom.d.ts": {
-        "version": "/lib/lib.dom.d.ts",
-        "signature": "/lib/lib.dom.d.ts"
-      },
-      "/lib/lib.webworker.importscripts.d.ts": {
-        "version": "/lib/lib.webworker.importscripts.d.ts",
-        "signature": "/lib/lib.webworker.importscripts.d.ts"
-      },
-      "/lib/lib.scripthost.d.ts": {
-        "version": "/lib/lib.scripthost.d.ts",
-        "signature": "/lib/lib.scripthost.d.ts"
-      },
       "/src/core/index.ts": {
         "version": "-13851440507",
         "signature": "-13851440507"
@@ -539,10 +483,6 @@ exports.m = mod;
     },
     "semanticDiagnosticsPerFile": [
       "/lib/lib.d.ts",
-      "/lib/lib.dom.d.ts",
-      "/lib/lib.es5.d.ts",
-      "/lib/lib.scripthost.d.ts",
-      "/lib/lib.webworker.importscripts.d.ts",
       "/src/core/anothermodule.ts",
       "/src/core/index.ts",
       "/src/logic/index.ts",
diff --git a/tests/baselines/reference/tsbuild/sample1/initial-Build/when-declaration-option-changes.js b/tests/baselines/reference/tsbuild/sample1/initial-Build/when-declaration-option-changes.js
index 341b277de0..4641a3fd0d 100644
--- a/tests/baselines/reference/tsbuild/sample1/initial-Build/when-declaration-option-changes.js
+++ b/tests/baselines/reference/tsbuild/sample1/initial-Build/when-declaration-option-changes.js
@@ -30,22 +30,6 @@ exports.multiply = multiply;
         "version": "/lib/lib.d.ts",
         "signature": "/lib/lib.d.ts"
       },
-      "/lib/lib.es5.d.ts": {
-        "version": "/lib/lib.es5.d.ts",
-        "signature": "/lib/lib.es5.d.ts"
-      },
-      "/lib/lib.dom.d.ts": {
-        "version": "/lib/lib.dom.d.ts",
-        "signature": "/lib/lib.dom.d.ts"
-      },
-      "/lib/lib.webworker.importscripts.d.ts": {
-        "version": "/lib/lib.webworker.importscripts.d.ts",
-        "signature": "/lib/lib.webworker.importscripts.d.ts"
-      },
-      "/lib/lib.scripthost.d.ts": {
-        "version": "/lib/lib.scripthost.d.ts",
-        "signature": "/lib/lib.scripthost.d.ts"
-      },
       "/src/core/anothermodule.ts": {
         "version": "-2676574883",
         "signature": "-8396256275"
@@ -68,10 +52,6 @@ exports.multiply = multiply;
     "exportedModulesMap": {},
     "semanticDiagnosticsPerFile": [
       "/lib/lib.d.ts",
-      "/lib/lib.dom.d.ts",
-      "/lib/lib.es5.d.ts",
-      "/lib/lib.scripthost.d.ts",
-      "/lib/lib.webworker.importscripts.d.ts",
       "/src/core/anothermodule.ts",
       "/src/core/index.ts",
       "/src/core/some_decl.d.ts"
diff --git a/tests/baselines/reference/tsbuild/sample1/initial-Build/when-logic-config-changes-declaration-dir.js b/tests/baselines/reference/tsbuild/sample1/initial-Build/when-logic-config-changes-declaration-dir.js
index 21e8c9b820..2d22389340 100644
--- a/tests/baselines/reference/tsbuild/sample1/initial-Build/when-logic-config-changes-declaration-dir.js
+++ b/tests/baselines/reference/tsbuild/sample1/initial-Build/when-logic-config-changes-declaration-dir.js
@@ -188,22 +188,6 @@ exports.multiply = multiply;
         "version": "/lib/lib.d.ts",
         "signature": "/lib/lib.d.ts"
       },
-      "/lib/lib.es5.d.ts": {
-        "version": "/lib/lib.es5.d.ts",
-        "signature": "/lib/lib.es5.d.ts"
-      },
-      "/lib/lib.dom.d.ts": {
-        "version": "/lib/lib.dom.d.ts",
-        "signature": "/lib/lib.dom.d.ts"
-      },
-      "/lib/lib.webworker.importscripts.d.ts": {
-        "version": "/lib/lib.webworker.importscripts.d.ts",
-        "signature": "/lib/lib.webworker.importscripts.d.ts"
-      },
-      "/lib/lib.scripthost.d.ts": {
-        "version": "/lib/lib.scripthost.d.ts",
-        "signature": "/lib/lib.scripthost.d.ts"
-      },
       "/src/core/anothermodule.ts": {
         "version": "-2676574883",
         "signature": "25219880154"
@@ -228,10 +212,6 @@ exports.multiply = multiply;
     "exportedModulesMap": {},
     "semanticDiagnosticsPerFile": [
       "/lib/lib.d.ts",
-      "/lib/lib.dom.d.ts",
-      "/lib/lib.es5.d.ts",
-      "/lib/lib.scripthost.d.ts",
-      "/lib/lib.webworker.importscripts.d.ts",
       "/src/core/anothermodule.ts",
       "/src/core/index.ts",
       "/src/core/some_decl.d.ts"
@@ -393,22 +373,6 @@ sourceFile:index.ts
         "version": "/lib/lib.d.ts",
         "signature": "/lib/lib.d.ts"
       },
-      "/lib/lib.es5.d.ts": {
-        "version": "/lib/lib.es5.d.ts",
-        "signature": "/lib/lib.es5.d.ts"
-      },
-      "/lib/lib.dom.d.ts": {
-        "version": "/lib/lib.dom.d.ts",
-        "signature": "/lib/lib.dom.d.ts"
-      },
-      "/lib/lib.webworker.importscripts.d.ts": {
-        "version": "/lib/lib.webworker.importscripts.d.ts",
-        "signature": "/lib/lib.webworker.importscripts.d.ts"
-      },
-      "/lib/lib.scripthost.d.ts": {
-        "version": "/lib/lib.scripthost.d.ts",
-        "signature": "/lib/lib.scripthost.d.ts"
-      },
       "/src/core/index.ts": {
         "version": "-13851440507",
         "signature": "-13851440507"
@@ -443,10 +407,6 @@ sourceFile:index.ts
     },
     "semanticDiagnosticsPerFile": [
       "/lib/lib.d.ts",
-      "/lib/lib.dom.d.ts",
-      "/lib/lib.es5.d.ts",
-      "/lib/lib.scripthost.d.ts",
-      "/lib/lib.webworker.importscripts.d.ts",
       "/src/core/anothermodule.ts",
       "/src/core/index.ts",
       "/src/logic/index.ts"
@@ -479,22 +439,6 @@ exports.m = mod;
         "version": "/lib/lib.d.ts",
         "signature": "/lib/lib.d.ts"
       },
-      "/lib/lib.es5.d.ts": {
-        "version": "/lib/lib.es5.d.ts",
-        "signature": "/lib/lib.es5.d.ts"
-      },
-      "/lib/lib.dom.d.ts": {
-        "version": "/lib/lib.dom.d.ts",
-        "signature": "/lib/lib.dom.d.ts"
-      },
-      "/lib/lib.webworker.importscripts.d.ts": {
-        "version": "/lib/lib.webworker.importscripts.d.ts",
-        "signature": "/lib/lib.webworker.importscripts.d.ts"
-      },
-      "/lib/lib.scripthost.d.ts": {
-        "version": "/lib/lib.scripthost.d.ts",
-        "signature": "/lib/lib.scripthost.d.ts"
-      },
       "/src/core/index.ts": {
         "version": "-13851440507",
         "signature": "-13851440507"
@@ -539,10 +483,6 @@ exports.m = mod;
     },
     "semanticDiagnosticsPerFile": [
       "/lib/lib.d.ts",
-      "/lib/lib.dom.d.ts",
-      "/lib/lib.es5.d.ts",
-      "/lib/lib.scripthost.d.ts",
-      "/lib/lib.webworker.importscripts.d.ts",
       "/src/core/anothermodule.ts",
       "/src/core/index.ts",
       "/src/logic/index.ts",
diff --git a/tests/baselines/reference/tsbuild/sample1/initial-Build/when-logic-specifies-tsBuildInfoFile.js b/tests/baselines/reference/tsbuild/sample1/initial-Build/when-logic-specifies-tsBuildInfoFile.js
index 990a019c47..cde5b25ae0 100644
--- a/tests/baselines/reference/tsbuild/sample1/initial-Build/when-logic-specifies-tsBuildInfoFile.js
+++ b/tests/baselines/reference/tsbuild/sample1/initial-Build/when-logic-specifies-tsBuildInfoFile.js
@@ -188,22 +188,6 @@ exports.multiply = multiply;
         "version": "/lib/lib.d.ts",
         "signature": "/lib/lib.d.ts"
       },
-      "/lib/lib.es5.d.ts": {
-        "version": "/lib/lib.es5.d.ts",
-        "signature": "/lib/lib.es5.d.ts"
-      },
-      "/lib/lib.dom.d.ts": {
-        "version": "/lib/lib.dom.d.ts",
-        "signature": "/lib/lib.dom.d.ts"
-      },
-      "/lib/lib.webworker.importscripts.d.ts": {
-        "version": "/lib/lib.webworker.importscripts.d.ts",
-        "signature": "/lib/lib.webworker.importscripts.d.ts"
-      },
-      "/lib/lib.scripthost.d.ts": {
-        "version": "/lib/lib.scripthost.d.ts",
-        "signature": "/lib/lib.scripthost.d.ts"
-      },
       "/src/core/anothermodule.ts": {
         "version": "-2676574883",
         "signature": "25219880154"
@@ -228,10 +212,6 @@ exports.multiply = multiply;
     "exportedModulesMap": {},
     "semanticDiagnosticsPerFile": [
       "/lib/lib.d.ts",
-      "/lib/lib.dom.d.ts",
-      "/lib/lib.es5.d.ts",
-      "/lib/lib.scripthost.d.ts",
-      "/lib/lib.webworker.importscripts.d.ts",
       "/src/core/anothermodule.ts",
       "/src/core/index.ts",
       "/src/core/some_decl.d.ts"
@@ -393,22 +373,6 @@ sourceFile:index.ts
         "version": "/lib/lib.d.ts",
         "signature": "/lib/lib.d.ts"
       },
-      "/lib/lib.es5.d.ts": {
-        "version": "/lib/lib.es5.d.ts",
-        "signature": "/lib/lib.es5.d.ts"
-      },
-      "/lib/lib.dom.d.ts": {
-        "version": "/lib/lib.dom.d.ts",
-        "signature": "/lib/lib.dom.d.ts"
-      },
-      "/lib/lib.webworker.importscripts.d.ts": {
-        "version": "/lib/lib.webworker.importscripts.d.ts",
-        "signature": "/lib/lib.webworker.importscripts.d.ts"
-      },
-      "/lib/lib.scripthost.d.ts": {
-        "version": "/lib/lib.scripthost.d.ts",
-        "signature": "/lib/lib.scripthost.d.ts"
-      },
       "/src/core/index.ts": {
         "version": "-13851440507",
         "signature": "-13851440507"
@@ -444,10 +408,6 @@ sourceFile:index.ts
     },
     "semanticDiagnosticsPerFile": [
       "/lib/lib.d.ts",
-      "/lib/lib.dom.d.ts",
-      "/lib/lib.es5.d.ts",
-      "/lib/lib.scripthost.d.ts",
-      "/lib/lib.webworker.importscripts.d.ts",
       "/src/core/anothermodule.ts",
       "/src/core/index.ts",
       "/src/logic/index.ts"
@@ -496,22 +456,6 @@ exports.m = mod;
         "version": "/lib/lib.d.ts",
         "signature": "/lib/lib.d.ts"
       },
-      "/lib/lib.es5.d.ts": {
-        "version": "/lib/lib.es5.d.ts",
-        "signature": "/lib/lib.es5.d.ts"
-      },
-      "/lib/lib.dom.d.ts": {
-        "version": "/lib/lib.dom.d.ts",
-        "signature": "/lib/lib.dom.d.ts"
-      },
-      "/lib/lib.webworker.importscripts.d.ts": {
-        "version": "/lib/lib.webworker.importscripts.d.ts",
-        "signature": "/lib/lib.webworker.importscripts.d.ts"
-      },
-      "/lib/lib.scripthost.d.ts": {
-        "version": "/lib/lib.scripthost.d.ts",
-        "signature": "/lib/lib.scripthost.d.ts"
-      },
       "/src/core/index.ts": {
         "version": "-13851440507",
         "signature": "-13851440507"
@@ -556,10 +500,6 @@ exports.m = mod;
     },
     "semanticDiagnosticsPerFile": [
       "/lib/lib.d.ts",
-      "/lib/lib.dom.d.ts",
-      "/lib/lib.es5.d.ts",
-      "/lib/lib.scripthost.d.ts",
-      "/lib/lib.webworker.importscripts.d.ts",
       "/src/core/anothermodule.ts",
       "/src/core/index.ts",
       "/src/logic/index.ts",
diff --git a/tests/projects/resolveJsonModuleAndComposite/tsconfig_withFiles.json b/tests/projects/resolveJsonModuleAndComposite/tsconfig_withFiles.json
index 71097850db..e463caf487 100644
--- a/tests/projects/resolveJsonModuleAndComposite/tsconfig_withFiles.json
+++ b/tests/projects/resolveJsonModuleAndComposite/tsconfig_withFiles.json
@@ -1,7 +1,6 @@
 {
   "compilerOptions": {
     "composite": true,
-    "target": "esnext",
     "moduleResolution": "node",
     "module": "commonjs",
     "resolveJsonModule": true,
diff --git a/tests/projects/resolveJsonModuleAndComposite/tsconfig_withInclude.json b/tests/projects/resolveJsonModuleAndComposite/tsconfig_withInclude.json
index 5efdbe28ac..dde5eec33c 100644
--- a/tests/projects/resolveJsonModuleAndComposite/tsconfig_withInclude.json
+++ b/tests/projects/resolveJsonModuleAndComposite/tsconfig_withInclude.json
@@ -1,7 +1,6 @@
 {
   "compilerOptions": {
     "composite": true,
-    "target": "esnext",
     "moduleResolution": "node",
     "module": "commonjs",
     "resolveJsonModule": true,
diff --git a/tests/projects/resolveJsonModuleAndComposite/tsconfig_withIncludeAndFiles.json b/tests/projects/resolveJsonModuleAndComposite/tsconfig_withIncludeAndFiles.json
index f50c629bac..82da9b398a 100644
--- a/tests/projects/resolveJsonModuleAndComposite/tsconfig_withIncludeAndFiles.json
+++ b/tests/projects/resolveJsonModuleAndComposite/tsconfig_withIncludeAndFiles.json
@@ -1,7 +1,6 @@
 {
   "compilerOptions": {
     "composite": true,
-    "target": "esnext",
     "moduleResolution": "node",
     "module": "commonjs",
     "resolveJsonModule": true,
diff --git a/tests/projects/resolveJsonModuleAndComposite/tsconfig_withIncludeOfJson.json b/tests/projects/resolveJsonModuleAndComposite/tsconfig_withIncludeOfJson.json
index 72d960b6fb..47279604fa 100644
--- a/tests/projects/resolveJsonModuleAndComposite/tsconfig_withIncludeOfJson.json
+++ b/tests/projects/resolveJsonModuleAndComposite/tsconfig_withIncludeOfJson.json
@@ -1,7 +1,6 @@
 {
   "compilerOptions": {
     "composite": true,
-    "target": "esnext",
     "moduleResolution": "node",
     "module": "commonjs",
     "resolveJsonModule": true,