Why does intpromote spew warnings for ~ operator?

[Dennis]

On Monday, 13 September 2021 at 11:41:29 UTC, Steven 
Schveighoffer wrote:
> I think we can have a solution that allows code that behaves 
> the same to continue to compile without deprecation, while 
> deprecating the code that will change with -preview=intpromote.

It could also help with finally turning it into an error and then 
making it the default. It's been almost 4 years now since [the 
Pull Request introducing 
it](https://github.com/dlang/dmd/pull/7013) was merged.