[drow-cplus-branch] lookup_symbol_aux refactoring

[David Carlton]

Is it okay if I commit the lookup_symbol_aux refactoring from 
<http://sources.redhat.com/ml/gdb-patches/2002-10/msg00080.html> to
drow-cplus-branch?  I've got some patches to symbol table lookup to
handle namespace stuff that are almost ready (I just want to add some
testcases), and they'll be a lot cleaner if I get this part of them
out of the way first.

David Carlton
carlton@math.stanford.edu