Make URL.init(resolvingBookmarkData:…) non-failable
Make URL.init(resolvingBookmarkData:…) non-failable

The NSURL method can't return `nil` unless it's throwing an error, so
the Swift initializer shouldn't be failable.

SR-3705

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