private static boolean lambda_parameter_list_1(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "lambda_parameter_list_1")) return false;
    boolean r;
    Marker m = enter_section_(b);
    r = consumeToken(b, T_LPAREN);
    r = r && comma_list(b, l + 1, GroovyGeneratedParser::lambda_parameter_list_1_1_0);
    r = r && consumeToken(b, T_RPAREN);
    exit_section_(b, m, null, r);
    return r;
  }
private static boolean lambda_parameter_list_1(PsiBuilder b, int l)