[Heap profiler] Add construction stack trace to heap object

src/heap-profiler.cc

Index: src/heap-profiler.cc
diff --git a/src/heap-profiler.cc b/src/heap-profiler.cc
index 7413b6e6886a18af5dc391ec32a05d686d467d7c..1dc1113214bd17caf5665191c470e0101d9920b7 100644
--- a/src/heap-profiler.cc
+++ b/src/heap-profiler.cc
@@ -168,7 +168,10 @@ SnapshotObjectId HeapProfiler::GetSnapshotObjectId(Handle<Object> obj) {
 
 
 void HeapProfiler::ObjectMoveEvent(Address from, Address to, int size) {
-  ids_->MoveObject(from, to, size);
+  bool known_object = ids_->MoveObject(from, to, size);
+  if (!known_object && !allocation_tracker_.is_empty()) {
+    allocation_tracker_->address_to_trace()->MoveObject(from, to, size);
+  }
 }