Missing error on enum assigned as a reference

[the-liquid-metal]

Bug Description Missing error on enum assigned as a reference.

Eclipse environment Version: 2023-06 (4.28.0) Build id: 20230608-1333 PDT: 8.0.0.202306050832

System

• PHP Version: 8.2.7, 8.1.20, 8.0.29, 7.4.33 (via https://onlinephp.io/)

To Reproduce Steps to reproduce the behavior: copy-paste this script to the IDE

<?php
declare(strict_types=1);

namespace ns1\ns2;

enum Test35: string {
    case Hearts = 'H';
    case Diamonds = 'D';
    case Clubs = 'C';
    case Spades = 'S';
}

$card = Test35::Clubs;
$ref = &$card->value; // this statement must trigger error
$val = $card->value;  // OK (not referencing)

var_dump($ref, $val);