public static boolean for_in_parameter(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "for_in_parameter")) return false;
    boolean r;
    Marker m = enter_section_(b, l, _NONE_, PARAMETER, "<for in parameter>");
    r = for_in_parameter_0(b, l + 1);
    if (!r) r = clear_variants_and_fail(b, l + 1);
    exit_section_(b, l, m, r, false, null);
    return r;
  }
public static boolean for_in_parameter(PsiBuilder b, int l)