Implement VisitHandlesInNewSpaceWithClassIds()

src/global-handles.cc

Index: src/global-handles.cc
diff --git a/src/global-handles.cc b/src/global-handles.cc
index f5850da04d5b940e46cba8e171bff52e3afeefd3..366a7df5cfc1efaefbe269c788c41681a28caab2 100644
--- a/src/global-handles.cc
+++ b/src/global-handles.cc
@@ -641,6 +641,17 @@ 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;