objc++: more code gen stuff for atomic property api,
currently turned off. // rdar://6137845
Also, fixes a test case which should be nonatomic under
new API.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147691 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed