Error when mocking built-in function with pass-by-reference argument and argument with default value (PHP 8)

This is for AspectMock 4.1.1.

During our migration from PHP 7.4 to PHP 8.1, we've encountered this pattern a few times:

When our PHP-Unit tests mock a PHP built-in function that has at least one argument passed by reference and one argument with a default value, the mock fails with the error `ParseError: syntax error, unexpected token "=", expecting ")"`.

The stack track looks like this:

```
/tmp/flockoipmSG:4
/petabox/www/common/vendor/codeception/aspect-mock/src/AspectMock/Core/Mocker.php:275
/petabox/www/common/vendor/codeception/aspect-mock/src/AspectMock/Core/Registry.php:38
/petabox/www/common/vendor/codeception/aspect-mock/src/AspectMock/Test.php:248
```

Examining the temporary file reveals the problem:
```
$ cat /tmp/flockoipmSG

从 AspectMock/Core/Mocker.php:275 开始，跟踪内置函数签名如何转换为临时 wrapper；Registry.php:38 和 Test.php:248 展示了周围的调用路径。使用 flock、system、stream_socket_client 或 stream_select 在 PHP 8.1 中重现，然后验证生成的声明能够在没有重复默认值的情况下通过解析，并且 mock 的调用仍然有效。

由索引模型根据 Issue 内容生成。