private static boolean l_paren_variant_0(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "l_paren_variant_0")) return false;
    boolean r;
    Marker m = enter_section_(b, l, _AND_);
    r = consumeToken(b, T_LPAREN);
    exit_section_(b, l, m, r, false, null);
    return r;
  }
private static boolean l_paren_variant_0(PsiBuilder b, int l)