clang-cl: Mark /FA and /Fa as unsupported options

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192465 91177308-0d34-0410-b5e6-96231b3b80d8
ObjectiveC migrator: fixes a bug when in NS_ENUM/NS_OPTIONS
migration, the typedef has annotations.
// rdar://15200602


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192468 91177308-0d34-0410-b5e6-96231b3b80d8