fix: use normalized path for internalPath in parseFile (#1836)

Author: yjhmelody

src/parser.ts

@@ -136,7 +136,7 @@ export class Parser extends DiagnosticEmitter {
   ): void {
     // the frontend gives us paths with file extensions
     var normalizedPath = normalizePath(path);
-    var internalPath = mangleInternalPath(path);
+    var internalPath = mangleInternalPath(normalizedPath);
 
     // check if already processed
     if (this.donelog.has(internalPath)) return;