Enums should not be allowed to implement interfaces with properties in 8.4

Description

The following code:

interface I
{
    public string $x { get; }
}

enum E implements I
{
}

Resulted in this output:

PHP Fatal error:  Enum E must implement 1 abstract private method (I::$x::get)

But I expected this output instead:

PHP Fatal error:  Enum E cannot implement interfaces with properties

PHP Version

PHP 8.4.0-dev (cli) (built: Sep 24 2024 14:38:59) (NTS)

Operating System

MacOS

先从 issue 中展示的 PHP enum 和 interface 复现开始，然后检查已链接的 pull request #16448，因为这项工作已经在进行中。确认实现了带有 properties 的 interface 的 enum 会产生预期的 fatal error，而不是抽象方法诊断。