Shift Microsoft enum extensions from -fms-extensions to -fms-compatibility, so -fms-extensions doesn't affect enum semantics in incompatible ways. <rdar://problem/10657186>.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150663 91177308-0d34-0410-b5e6-96231b3b80d8