When warning about comparing an unsigned int to being >= 0, don't issue a warning if the zero value was an
enum or was expanded from a macro.

Fixes: <rdar://problem/8414119>

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114695 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed