static boolean soft_type_argument_list_item(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "soft_type_argument_list_item")) return false;
    boolean r;
    r = type_argument_list_item(b, l + 1);
    if (!r) r = clear_variants_and_fail(b, l + 1);
    return r;
  }
static boolean soft_type_argument_list_item(PsiBuilder b, int l)