[GMR] Be a bit smarter about which globals don't alias when doing recursive lookups

Should hopefully fix the remainder of PR24288.

Differential Revision: http://reviews.llvm.org/D11900

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244575 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed