internal BamlTreeNode MapKeyToBamlTreeNode(BamlLocalizableResourceKey key)
            {
                BamlTreeNode node = _originalMap.MapKeyToBamlTreeNode(key, _tree);

                if (node == null)
                {
                    // find it in the new nodes
                    if (_keyToNewBamlNodeIndexMap.Contains(key))
                    {
                        node = _tree[(int)_keyToNewBamlNodeIndexMap[key]];
                    }
                }

                return(node);
            }