142 struct node *merge_nodes(struct node *old_node, struct node *new_node)  in merge_nodes()  argument
148 	old_node->deleted = 0;  in merge_nodes()
152 		add_label(&old_node->labels, l->label);  in merge_nodes()
163 			delete_property_by_name(old_node, new_prop->name);  in merge_nodes()
169 		for_each_property_withdel(old_node, old_prop) {  in merge_nodes()
187 			add_property(old_node, new_prop);  in merge_nodes()
200 			delete_node_by_name(old_node, new_child->name);  in merge_nodes()
206 		for_each_child_withdel(old_node, old_child) {  in merge_nodes()
216 			add_child(old_node, new_child);  in merge_nodes()
219 	old_node->srcpos = srcpos_extend(old_node->srcpos, new_node->srcpos);  in merge_nodes()
225 	return old_node;  in merge_nodes()