[PROF-9213] Add support for mjs/cjs source maps (#161)

* Add support for mjs/cjs source maps

Author: nsavoire

ts/src/profile-serializer.ts

@@ -108,6 +108,12 @@ function serialize<T extends ProfileNode>(
   while (entries.length > 0) {
     const entry = entries.pop()!;
     const node = entry.node;
+
+    // mjs files have a `file://` prefix in the scriptName -> remove it
+    if (node.scriptName.startsWith('file://')) {
+      node.scriptName = node.scriptName.slice(7);
+    }
+
     if (ignoreSamplesPath && node.scriptName.indexOf(ignoreSamplesPath) > -1) {
       continue;
     }

ts/src/sourcemapper/sourcemapper.ts

@@ -359,7 +359,7 @@ async function getMapFiles(baseDir: string): Promise<string[]> {
   const mapFiles: string[] = [];
   for await (const entry of walk(
     baseDir,
-    filename => filename.endsWith('.js.map'),
+    filename => /\.[cm]?js\.map$/.test(filename),
     (root, dirname) =>
       root !== '/proc' && dirname !== '.git' && dirname !== 'node_modules'
   )) {