Possible bug when instantiating template function with nested struct

[Stanislav Blinov]

On Sunday, 7 November 2021 at 13:59:11 UTC, Alexandru Ermicioi 
wrote:

>> Arrays, ostensibly, are first class citizens in D, therefore 
>> should be implemented in the language, not a library.
>
> But why does it matter where you put it?

Because this should just compile and work:

```d
T[3] a = T(42);
```

for any T that can be thus instantiated. At the moment, whether 
it does even compile depends:

- on what T actually is,
- on where this instantiation is taking place,
- on your compile options.

Which is just ridiculous.