| Index: src/heap/scavenger.cc
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| diff --git a/src/heap/scavenger.cc b/src/heap/scavenger.cc
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| index 4fa30e2650890945097555663006d63f86040512..2b0234dd0b9891cbf698d344be1d185231e4556a 100644
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| --- a/src/heap/scavenger.cc
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| +++ b/src/heap/scavenger.cc
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| @@ -295,6 +295,14 @@
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|                                             PromotionMode promotion_mode) {
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|      ObjectEvacuationStrategy<POINTER_OBJECT>::Visit(map, slot, object,
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|                                                      promotion_mode);
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| +
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| +    Heap* heap = map->GetHeap();
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| +    MapWord map_word = object->map_word();
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| +    DCHECK(map_word.IsForwardingAddress());
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| +    HeapObject* target = map_word.ToForwardingAddress();
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| +    if (!heap->InNewSpace(target)) {
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| +      heap->array_buffer_tracker()->Promote(JSArrayBuffer::cast(target));
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| +    }
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|    }
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|  
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|    static inline void EvacuateByteArray(Map* map, HeapObject** slot,
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| 
 |