RFC: implement 'info proc mappings' for core files

[Tom Tromey]

>>>>> "Sergio" == Sergio Durigan Junior <sergiodj@redhat.com> writes:

Sergio> Wow, I totally forgot about this feature.  In fact, I thought Ulrich's
Sergio> patch had already implemented it!  If I knew it hadn't been implemented,
Sergio> I would have sent my patches again :-).  Shame on me.

I totally forgot there were patches in this area, too :(
I will dig them up and look at them.

Tom