AllocatePartialMap 2164 src/heap.cc      { MaybeObject* maybe_obj = AllocatePartialMap(MAP_TYPE, Map::kSize);
AllocatePartialMap 2173 src/heap.cc            AllocatePartialMap(FIXED_ARRAY_TYPE, kVariableSizeSentinel);
AllocatePartialMap 2178 src/heap.cc      { MaybeObject* maybe_obj = AllocatePartialMap(ODDBALL_TYPE, Oddball::kSize);
AllocatePartialMap  628 src/heap.h       MUST_USE_RESULT MaybeObject* AllocatePartialMap(InstanceType instance_type,