gdb: remove TYPE_RVALUE_REFERENCE_TYPE

IMO, there is no point in keeping this macro.  Remove it and access the
field directly.  If we ever want some kind of abstraction in front of
the field, then we'll add a method.

Change-Id: Ic1e6ee65f7fda78a40e935b1e6a8e3b7ab5540fb
Approved-By: Andrew Burgess <aburgess@redhat.com>
2 files changed