Get rid of most uses of 'Temporary macro' HEAP

src/mark-compact-inl.h

Index: src/mark-compact-inl.h
diff --git a/src/mark-compact-inl.h b/src/mark-compact-inl.h
index 10773e7202a3ee124cdd8d290411509dd32c7778..321309c60e20136be1a2f25213479d0331ecd73d 100644
--- a/src/mark-compact-inl.h
+++ b/src/mark-compact-inl.h
@@ -58,7 +58,7 @@ void MarkCompactCollector::MarkObject(HeapObject* obj, MarkBit mark_bit) {
     mark_bit.Set();
     MemoryChunk::IncrementLiveBytesFromGC(obj->address(), obj->Size());
     ASSERT(IsMarked(obj));
-    ASSERT(HEAP->Contains(obj));
+    ASSERT(obj->GetIsolate()->heap()->Contains(obj));
     marking_deque_.PushBlack(obj);
   }
 }