@Override
  @Nullable
  public @Nls String getQuickNavigateInfo(PsiElement element, PsiElement originalElement) {
    if (element instanceof RegExpGroup group) {
      return StringUtil.escapeXmlEntities(group.getUnescapedText());
    } else {
      return null;
    }
  }
@Override
  @Nullable
  public @Nls String getQuickNavigateInfo(PsiElement element, PsiElement originalElement)