static boolean old_arithmetic_expansion_expression(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "old_arithmetic_expansion_expression")) return false;
    boolean r;
    Marker m = enter_section_(b, l, _NONE_);
    r = expression(b, l + 1, -1);
    exit_section_(b, l, m, r, false, ShParser::old_arithmetic_expansion_expression_recover);
    return r;
  }
static boolean old_arithmetic_expansion_expression(PsiBuilder b, int l)