More operators inside `is(...)` expressions

[Timon Gehr]

On 24.08.20 19:36, Steven Schveighoffer wrote:
> 
> Really, all the arguments for having '!=' for binary operations vs doing 
> !(someExpr == otherExp) apply here.

Some, not all (you are not getting rid of parentheses).

> I also really don't find the "it will complicate the compiler" arguments convincing. 

If it does so meaningfully, it's probably an issue with the chosen 
implementation strategy.