private static boolean inClass(@NotNull PsiErrorElement psiErrorElement) {
    PsiClass psiClass = PsiTreeUtil.getParentOfType(psiErrorElement, PsiClass.class);
    if (psiClass == null) return false;
    PsiElement lBrace = psiClass.getLBrace();
    if (lBrace == null) return true;
    PsiElement rBrace = psiClass.getRBrace();
    if (rBrace == null) return true;
    TextRange errorRange = psiErrorElement.getTextRange();
    return lBrace.getTextOffset() <= errorRange.getStartOffset() &&
           rBrace.getTextOffset() + 1 >= errorRange.getEndOffset();
  }
private static boolean inClass(@NotNull PsiErrorElement psiErrorElement)