ProtoObject and comparison for equality and ordering

[Adam D. Ruppe]

On Wednesday, 15 May 2019 at 00:19:05 UTC, Andrei Alexandrescu 
wrote:
> I repeat myself: this won't work.
>
> Recall that a < b is lowered into a.opCmp(b) < 0. So we have a 
> comparison against the literal 0.

We could just as well change the definition of the lowering to

a.opCmp(b) == ComparisonResult.lessThan


I understand the generated instructions would be slightly 
different and that might be relevant, but if we're talking about 
changing things, no need to arbitrarily draw the line like that.