Fix an extremely subtle bug with pointer comparisons: they have to be 
unsigned because it's possible (at least in theory) to have
have both positive and negative pointers pointing to the same object.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51681 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed