Imitate container stack logic from `box_(_ value: Encodable)` in `box(_ dict: [String : Encodable])`
Imitate container stack logic from `box_(_ value: Encodable)` in `box(_ dict: [String : Encodable])`

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