Method Enqueue

util/thread/lfstack_ut.cpp:318–320

        using ValueType = THolder<int>;

        static void Enqueue(TLockFreeStack<ValueType>& stack, size_t i) {
            stack.Enqueue(MakeHolder<int>(static_cast<int>(i)));
        }

        static void Dequeue(TLockFreeStack<ValueType>& stack) {
            ValueType value;