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Re: categorizing traits objects

I think our experience suggests that even something that
seems simple like "breadth first search" can sometimes
result in unexpected behavior, especially for "resends".
Furthermore, I believe it makes programs more readable
to make the programmer's intent explicit when different
methods for the same message are inherited via several
parents. It is easy to write forwarding methods of the
form: "foo = (parent1.foo)" to accomplish this. So far,
we have encountered a situation where more than a few
such methods were required.

	-- John