Don't propagate the 'availability' attribute through declaration
merging for overrides. One might want to make a method's availability
in a superclass different from that of its subclass. Fixes
<rdar://problem/10166223>.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140406 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed