[Grace-core] Considering Traits as Objects in Grace

[Lex Spoon]

For handling super, I believe that the glue method approach will have
challenges in practice. Imagine you have a hierarchy like this, and
every class in the hierarchy has its own initialize method:

   A
 /   \
B   C
 \  /
  D

With the linearization approach, all the initialize methods will run
one time, in an order that is deterministic but kinda slippery.

With the glue method approach, class D needs to write a glue method,
but I don't see how to do it. The obvious thing to do is call
B.initialize followed by C.initialize, but in that case, A.initialize
is going to run twice.

Lex