Foundation: add commented out custom AnyHashable representation to Measurement
Foundation: add commented out custom AnyHashable representation to Measurement

It is disabled because bridging of Measurement instances does not actually work now.

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