[RFA] Apply fix to 15519 to 7.6 branch

[Joel Brobecker]

> I'd like to apply this to the 7.6 branch.
> Regression tested on amd64-linux, with/without Fission.
> 
> Ok to check in?
> 
> 2013-06-06  Doug Evans  <dje@google.com>
> 
> 	* gdb.cp/derivation.exp: Make tests have unique names.
> 
> 2013-06-05  Doug Evans  <dje@google.com>
> 	    Keith Seitz  <keiths@redhat.com>
> 
> 	PR 15519
> 	* cp-namespace.c (find_symbol_in_baseclass): Call
> 	cp_lookup_symbol_in_namespace instead of cp_lookup_symbol_namespace.
> 	Check result of call to lookup_symbol_static.
> 	Call lookup_static_symbol_aux unconditionally.
> 	Call check_typedef on base types before accessing them.
> 	(cp_lookup_nested_symbol): Fix comment.
> 
> 	testsuite/
> 	* gdb.cp/derivation2.cc: New file.
> 	* gdb.cp/derivation.cc (main): Call foo2.
> 	* gdb.cp/derivation.exp: Add tests for typedefs in another
> 	file, and when there's an active block.

Of course. You are much better qualified than I am to determine
the benefit / risk, so feel free to make those decisions (I think
that, for this area, Tom might be a good resource as well).

Just a quick reminder to update the release wiki page (I see you
already have a PR, which is going to make it less work :-) ).

Thank you!
-- 
Joel