Remove the notion of non-inheritable conformances entirely <rdar://problem/16880016>.
Remove the notion of non-inheritable conformances entirely <rdar://problem/16880016>.


Swift SVN r20627

apple/swift-corelibs-foundation,apple/swift-corelibs-foundation,apple/swift-corelibs-foundation,apple/swift-corelibs-foundation,apple/swift-corelibs-foundation