NextFreePropertyIndex 4118 src/heap.cc      ASSERT(map->NextFreePropertyIndex() == 0);
NextFreePropertyIndex  287 src/objects-debug.cc               map()->NextFreePropertyIndex()));
NextFreePropertyIndex  807 src/objects-debug.cc     info->number_of_fast_used_fields_   += map()->NextFreePropertyIndex();
NextFreePropertyIndex 1548 src/objects.cc   int index = map()->NextFreePropertyIndex();
NextFreePropertyIndex 1780 src/objects.cc   int index = map()->NextFreePropertyIndex();
NextFreePropertyIndex 4948 src/objects.h    int NextFreePropertyIndex();