simplify_relational_operation and unsigned char

[Dave Korn]

Amir Gonnen wrote:

> Perhaps EQ and NE could be treated as unsigned, like the
> GEU,LEU,GTU,LTU operators?

  :) What exactly is "signed equality" and how does/would it differ from
"unsigned equality"?  I'm not sure the concept makes any sense!  (And that's
always a warning sign that your diagnosis has gone astray somewhere and led
you to a false understanding of the problem you're working on.)

    cheers,
      DaveK