During property reconfiguring ensure that the first map that gets new descriptors is the one that o…

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index 3cbc756af3509bff71cdda1bc4de190ef18535e8..b6206f826597cfd60e99aef89db93dee7aa548c5 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -4429,11 +4429,10 @@ int Map::GetInObjectPropertyOffset(int index) {
 }
 
 
-Handle<Map> Map::CopyInstallDescriptorsForTesting(
-    Handle<Map> map, int new_descriptor, Handle<DescriptorArray> descriptors,
-    Handle<LayoutDescriptor> layout_descriptor) {
-  return CopyInstallDescriptors(map, new_descriptor, descriptors,
-                                layout_descriptor);
+Handle<Map> Map::AddMissingTransitionsForTesting(
+    Handle<Map> split_map, Handle<DescriptorArray> descriptors,
+    Handle<LayoutDescriptor> full_layout_descriptor) {
+  return AddMissingTransitions(split_map, descriptors, full_layout_descriptor);
 }