Implement VisitHandlesInNewSpaceWithClassIds()

src/global-handles.cc

Index: src/global-handles.cc
diff --git a/src/global-handles.cc b/src/global-handles.cc
index 3f4e3bea59d5fb8d96e9435d3dbb0f6932ffd532..3332491d1eefe6385a5eb4ccb88a8f9f30dff4d6 100644
--- a/src/global-handles.cc
+++ b/src/global-handles.cc
@@ -721,6 +721,17 @@ void GlobalHandles::IterateAllRootsWithClassIds(ObjectVisitor* v) {
 }
 
 
+void GlobalHandles::IterateAllRootsInNewSpaceWithClassIds(ObjectVisitor* v) {
+  for (int i = 0; i < new_space_nodes_.length(); ++i) {
+    Node* node = new_space_nodes_[i];
+    if (node->has_wrapper_class_id() && node->IsRetainer()) {
+      v->VisitEmbedderReference(node->location(),
+                                node->wrapper_class_id());
+    }
+  }
+}
+
+
 void GlobalHandles::RecordStats(HeapStats* stats) {
   *stats->global_handle_count = 0;
   *stats->weak_global_handle_count = 0;