AllocateJSProxy  1077 src/factory.cc       isolate()->heap()->AllocateJSProxy(*handler, *prototype),
AllocateJSProxy   581 src/heap.h       MUST_USE_RESULT MaybeObject* AllocateJSProxy(Object* handler,
AllocateJSProxy   680 src/runtime.cc   return isolate->heap()->AllocateJSProxy(handler, used_prototype);