Deprecate `!a == b`

[Timon Gehr]

On 8/14/24 20:27, IchorDev wrote:
> On Wednesday, 14 August 2024 at 14:48:42 UTC, user1234 wrote:
>> Well, just wanna say that this is an easy check to implement in 
>> Dscanner. That does not require any context. Just match the pattern in 
>> the AST and issue a warning.
> 
> Sounds like a better idea to do that. I’m not a fan of having more ‘it’s 
> unintuitive therefore we’ll force the code to be unreadable’ features 
> like bitwise operators requiring parenthesisation.

I can't say I ever wanted `a & b==c`.

Anyway, this is indeed the same kind of thing, and it would be 
consistent to ban this case too.