ObjectiveC migrator: In deciding NS_OPTION over
NS_ENUM, at least one power of 2 enumerator 
must be greater than two.


git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@188470 91177308-0d34-0410-b5e6-96231b3b80d8
Fixes a gross conditional in my last patch.
- This line, and those below, will be ignored--

M    lib/ARCMigrate/ObjCMT.cpp


git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@188473 91177308-0d34-0410-b5e6-96231b3b80d8