private static boolean paren_list_inner_1(PsiBuilder b, int l, Parser _item) {
    if (!recursion_guard_(b, l, "paren_list_inner_1")) return false;
    while (true) {
      int c = current_position_(b);
      if (!paren_list_tail(b, l + 1, _item)) break;
      if (!empty_element_parsed_guard_(b, "paren_list_inner_1", c)) break;
    }
    return true;
  }
private static boolean paren_list_inner_1(PsiBuilder b, int l, Parser _item)