phpdbg: Assertion failure on `i funcs`

### Description

The following code:


```
i funcs
```

Resulted in this output:
```
/php-src/sapi/phpdbg/phpdbg_info.c:448: phpdbg_do_info_funcs: Assertion `(((__ht)->u.flags & (1<<2)) != 0)' failed.
Aborted (core dumped)
```


### PHP Version

PHP 8.4.0-dev

### Operating System

ubuntu 22.04