@Override
      protected CachedValue<HtmlLabelsHolder> compute(final XmlFile file, final Object p) {
        return CachedValuesManager.getManager(file.getProject()).createCachedValue(() -> {
          final HtmlLabelsHolder holder = new HtmlLabelsHolder();
          final Language language = file.getViewProvider().getBaseLanguage();
          final PsiFile psiFile = file.getViewProvider().getPsi(language);
          if (psiFile != null) {
            psiFile.accept(new LabelGatheringRecursiveVisitor(holder));
            return new CachedValueProvider.Result<>(holder, file);
          }
          return null;
        }, false);
      }
@Override
      protected CachedValue<HtmlLabelsHolder> compute(final XmlFile file, final Object p)