Opaque type (struct) with a static immutable fails to compile without constructor - why?

[Imperatorn]

On Thursday, 4 March 2021 at 15:19:16 UTC, frankp wrote:
> On Thursday, 4 March 2021 at 14:54:11 UTC, frankp wrote:
>> I give up. This makes no sense. I just accept this is the work 
>> of gremlins. I revert to a plain alias and an enum.
>>
>> Sorry for wasting your time.
>
> Not gremlins after all. It was simply a matter of the compiler 
> pointing to the wrong line. Everything makes sense now. 
> Anyways, thanks for your help.

"15 minutes of gremlins" 😉