Deprecate `!a == b`

[Nick Treleaven]

On Friday, 16 August 2024 at 14:40:15 UTC, IchorDev wrote:
> Removing integer promotion would not be equivalent to this 
> proposal. This proposal says that you should be more explicit 
> so that the compiler can be sure you aren’t making a mistake. 
> When applying the same methodology to integer promotion, it 
> produces an abomination; so the methodology should come into 
> question for producing an abomination when applied to a 
> similarly human-error-prone area of the language.

Adding brackets to disambiguate does not introduce bugs, it makes 
code clearer. Requiring casts is brittle when the underlying type 
changes. That can introduce far worse bugs than integer promotion.