static boolean paren_list_item(PsiBuilder b, int l, Parser _item) {
    if (!recursion_guard_(b, l, "paren_list_item")) return false;
    boolean r, p;
    Marker m = enter_section_(b, l, _NONE_);
    r = mb_nl(b, l + 1);
    r = r && empty(b, l + 1);
    p = r; // pin = 2
    r = r && _item.parse(b, l);
    exit_section_(b, l, m, r, p, GroovyGeneratedParser::paren_list_item_recovery);
    return r || p;
  }
static boolean paren_list_item(PsiBuilder b, int l, Parser _item)