version(number) is completely useless

[Andrey Zherikov]

On Wednesday, 20 July 2022 at 17:55:20 UTC, apz28 wrote:
> Anyway, "static if" construct is not same as version
> https://issues.dlang.org/show_bug.cgi?id=16666

I don't thins that this is good example. The bug is actually 
about that `static if` doesn't work with forward declaration:
```d
void func(S s) {}

version (WORKING)
     struct S {}
else static if (true)
     struct S {}
```
This fails with `Error: undefined identifier 'S'` and passes with 
`dmd -version=WORKING`.

Anyway this can be fixed.