self_accessor should correctly replace self in bound closures

[vudaltsov]

Bug report

Currently PHP-CS-Fixer always replaces class with self, even in \Clos

Description

Consider code:

<?php

final class A
{
    public static function a(): void
    {
        (function () {
            var_dump(self::class, A::class);
        })->bindTo(null, B::class)();
    }
}

final class B {}

A::a();

Here we should not replace A::class with self::class, because within bound closure self is B, not A.

https://3v4l.org/38GQA

[SpacePossum]

Since this issue has not had any activity within the last 90 days, I have marked it as stale.

it got a PR opened for it 2 weeks ago, also, valid code-breaking-bugs should never be labelled stale IMHO