Fix stale pointer issue in heap snapshot generator

src/heap-snapshot-generator.cc

Index: src/heap-snapshot-generator.cc
diff --git a/src/heap-snapshot-generator.cc b/src/heap-snapshot-generator.cc
index bae364cae7d197531e73f98e4eb00ffc5e118519..654cda4644f9c00f423693ca6d8e91a8b5da982c 100644
--- a/src/heap-snapshot-generator.cc
+++ b/src/heap-snapshot-generator.cc
@@ -2471,6 +2471,9 @@ void NativeObjectsExplorer::SetNativeRootReference(
       FindOrAddGroupInfo(info->GetGroupLabel());
   HeapEntry* group_entry =
       filler_->FindOrAddEntry(group_info, synthetic_entries_allocator_);
+  // |FindOrAddEntry| can move and resize the entries backing store. Reload
+  // potentially-stale pointer.
+  child_entry = filler_->FindEntry(info);
   filler_->SetNamedAutoIndexReference(
       HeapGraphEdge::kInternal,
       group_entry->index(),