Objective-C. Accept '__attribute__((__ns_returns_retained__))' 
for function/methods returning block in MRR mode as well.
// rdar://17259812


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@210706 91177308-0d34-0410-b5e6-96231b3b80d8
Fix the VS2012 build.

It didn't handle the in-class member initializer and compound literal.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@210707 91177308-0d34-0410-b5e6-96231b3b80d8