Set declarationMap to false in transpileModule. (#59642)

Author: dragomirtitian

src/services/transpile.ts

@@ -149,6 +149,7 @@ function transpileWorker(input: string, transpileOptions: TranspileOptions, decl
     }
     else {
         options.declaration = false;
+        options.declarationMap = false;
     }
 
     const newLine = getNewLineCharacter(options);

src/testRunner/unittests/services/transpile.ts

@@ -294,6 +294,11 @@ var x = 0;`,
         testVerbatimModuleSyntax: true,
     });
 
+    transpilesCorrectly("Supports setting 'declarationMap'", "x;", {
+        options: { compilerOptions: { declarationMap: true }, fileName: "input.js", reportDiagnostics: true },
+        testVerbatimModuleSyntax: true,
+    });
+
     transpilesCorrectly("Supports setting 'declarationDir'", "x;", {
         options: { compilerOptions: { declarationDir: "out/declarations" }, fileName: "input.js", reportDiagnostics: true },
         testVerbatimModuleSyntax: true,