Deprecate {} without () for function pointers and delegates

[Mindy (0xEAB)]

On Friday, 12 June 2026 at 22:35:31 UTC, ABRightLight wrote:
>> I would have posted this to `digitalmars.dip.ideas`.
>
> I didn't think a small change like this would need to be a DIP. 
> Should I double-post?

If it gains no traction in here, why not?