fix(compiler-cli): ensure source-maps can handle webpack:// protocol (#32912)

Webpack and other build tools sometimes inline the contents of the
source files in their generated source-maps, and at the same time
change the paths to be prefixed with a protocol, such as `webpack://`.

This can confuse tools that need to read these paths, so now it is
possible to provide a mapping to where these files originated.

PR Close #32912

packages/compiler-cli/ngcc/src/rendering/source_maps.ts

@@ -35,7 +35,7 @@ export function renderSourceAndMap(
       {file: generatedPath, source: generatedPath, includeContent: true});
 
   try {
-    const loader = new SourceFileLoader(fs, logger);
+    const loader = new SourceFileLoader(fs, logger, {});
     const generatedFile = loader.loadSourceFile(
         generatedPath, generatedContent, {map: generatedMap, mapPath: generatedMapPath});