@Override
      public boolean visitFile(@NotNull VirtualFile file) {
        ProgressIndicatorProvider.checkCanceled();
        if (myExcludedFolders.contains(file)) {
          return false;
        }
        if (!file.isDirectory()) {
          final PsiFile psiFile = manager.findFile(file);
          if (psiFile != null) {
            processFile(psiFile, seenNames);
          }
        }
        return true;
      }
@Override
      public boolean visitFile(@NotNull VirtualFile file)