Add DestructNotifier test utility
Add DestructNotifier test utility

emil-e/rapidcheck,whoshuu/rapidcheck,tm604/rapidcheck,unapiedra/rapidfuzz,emil-e/rapidcheck,whoshuu/rapidcheck,tm604/rapidcheck,whoshuu/rapidcheck,tm604/rapidcheck,emil-e/rapidcheck,unapiedra/rapidfuzz,unapiedra/rapidfuzz