public static boolean expression_single_parameter_lambda_body(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "expression_single_parameter_lambda_body")) return false;
    boolean r;
    Marker m = enter_section_(b, l, _COLLAPSE_, EXPRESSION_LAMBDA_BODY, "<expression single parameter lambda body>");
    r = expression_or_application_except_zero_params_closure(b, l + 1);
    exit_section_(b, l, m, r, false, null);
    return r;
  }
public static boolean expression_single_parameter_lambda_body(PsiBuilder b, int l)