226     void Merge(SlotFreeList<true>* list) {  in Merge()  argument
229         CHECK(list != nullptr);  in Merge()
230         list->Verify();  in Merge()
232       if (list->Size() == 0) {  in Merge()
240         *headp = list->Head();  in Merge()
242           *tailp = list->Tail();  in Merge()
244         size_ = list->Size();  in Merge()
247         DCHECK(list->Head() != nullptr);  in Merge()
248         *headp = list->Head();  in Merge()
249         DCHECK(list->Tail() != nullptr);  in Merge()
250         list->Tail()->SetNext(old_head);  in Merge()
252         size_ += list->Size();  in Merge()
254       list->Reset();  in Merge()