private static @Nullable PsiModifierListOwner resolveExpression(@Nullable PsiExpression expression) {
    expression = PsiUtil.skipParenthesizedExprDown(expression);
    if (expression instanceof PsiMethodCallExpression) {
      return ((PsiMethodCallExpression)expression).resolveMethod();
    }
    if (expression instanceof PsiReferenceExpression) {
      PsiElement resolved = ((PsiReferenceExpression)expression).resolve();
      if (resolved instanceof PsiModifierListOwner) {
        return (PsiModifierListOwner)resolved;
      }
    }
    return null;
  }
private static @Nullable PsiModifierListOwner resolveExpression(@Nullable PsiExpression expression)