@Internal
  public static boolean isIndexable(@NotNull VirtualFile file, @NotNull Project project) {
    IndexedFileImpl indexedFile = new IndexedFileImpl(file, project);
    TrigramIndexFilter trigramIndexFilter = ApplicationManager.getApplication().getService(TrigramIndexFilter.class);
    return trigramIndexFilter.acceptInput(indexedFile);
  }
@Internal
  public static boolean isIndexable(@NotNull VirtualFile file, @NotNull Project project)