static boolean mb_nl_group(PsiBuilder b, int l, Parser _something) {
    if (!recursion_guard_(b, l, "mb_nl_group")) return false;
    boolean r;
    Marker m = enter_section_(b);
    r = _something.parse(b, l);
    if (!r) r = withProtectedLastVariantPos(b, l + 1, mb_nl_group_1_0_$(_something));
    exit_section_(b, m, null, r);
    return r;
  }
static boolean mb_nl_group(PsiBuilder b, int l, Parser _something)