[APINotes] Update endian stream interface to match Clang r332757
[APINotes] Update endian stream interface to match Clang r332757

apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang