@Override
  public void registerReferenceProviders(@NotNull PsiReferenceRegistrar registrar) {
    PsiReferenceProvider provider = CommentsReferenceContributor.COMMENTS_REFERENCE_PROVIDER_TYPE.getProvider();
    registrar.registerReferenceProvider(new PsiElementPattern.Capture<>(ShLiteral.class) {},
                                        provider, PsiReferenceRegistrar.LOWER_PRIORITY);
  }
@Override
  public void registerReferenceProviders(@NotNull PsiReferenceRegistrar registrar)