IntPtrTEvent     6158 src/heap.cc      LOG(isolate_, IntPtrTEvent("heap-capacity", Capacity()));
IntPtrTEvent     6159 src/heap.cc      LOG(isolate_, IntPtrTEvent("heap-available", Available()));
IntPtrTEvent      172 src/log.h        void IntPtrTEvent(const char* name, intptr_t value);