Objective-C. Attributes on class declarations carry over
to forward class declarations for diagnosis. 
// rdar://16681279


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211195 91177308-0d34-0410-b5e6-96231b3b80d8
Objective-C. Try to fix the test in buildbot in my last patch.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211197 91177308-0d34-0410-b5e6-96231b3b80d8