objc: private methods can have their attributes, no diagnostic is required.
None private methods if their implementation have attribute, they must exactly 
match those in their declarations. // rdar://10271563


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142709 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed