AllocateEmptyFixedArray 2184 src/heap.cc { MaybeObject* maybe_obj = AllocateEmptyFixedArray(); AllocateEmptyFixedArray 2203 src/heap.cc { MaybeObject* maybe_obj = AllocateEmptyFixedArray(); AllocateEmptyFixedArray 1862 src/heap.h MUST_USE_RESULT MaybeObject* AllocateEmptyFixedArray();