Allow designated initialization of struct

[IchorDev]

On Tuesday, 12 November 2024 at 11:18:44 UTC, Dennis wrote:
> On Friday, 8 November 2024 at 20:20:19 UTC, IchorDev wrote:
>> I thought the point of requiring a cast after promotion was 
>> preventing under/overflow.
>
> Thanks for spotting that, I added it to the issue tracker: 
> https://issues.dlang.org/show_bug.cgi?id=24855
>
> If you stumble on other failure cases, please add them as well.

I tried to show the flaws of a feature and instead I found a bug. 
Classic. Thanks for opening the issue.
I still think VRP needs to be used with a lot of attention to 
detail in templated code to prevent errors when overflow is the 
desired outcome; whereas vomiting casts everywhere will only harm 
your eyes.