objective-c: Normally, a property cannot be both 'readonly' and having a 
"write" attribute (copy/retain/etc.). But, property declaration in 
primary class and protcols are tentative as they may be overridden 
into a 'readwrite' property in class extensions. Postpone diagnosing 
such warnings until the class implementation is seen. 
// rdar://11656982


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158869 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed