[Issue 23310] Segfault on switch with global enum

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23310

--- Comment #3 from ryuukk_ <ryuukk.dev at gmail.com> ---
It should provide an error:

```
`switch` runtime hook not found
Have you created a custom `object` module and forgot to implement the hook?
```

--