@Override
  public PsiFile @NotNull [] findFilesWithPlainTextWords(@NotNull String word) {
    return CacheManager.getInstance(myManager.getProject()).getFilesWithWord(word, UsageSearchContext.IN_PLAIN_TEXT,
                                                                             GlobalSearchScope.projectScope(myManager.getProject()),
                                                                             true);
  }
@Override
  public PsiFile @NotNull [] findFilesWithPlainTextWords(@NotNull String word)