objective-C: Change rules for overriding properties in 
class extensions a little. clang now allows readonly property 
with no ownership rule (assign, unsafe_unretained, weak, retain, 
strong, or copy) with a readwrite property with an ownership rule.
// rdar://12103400 


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162319 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed