{"ast_node_type":"other","tokens":[{"end":72,"kind":"keyword","start":0,"text":"self.change_fixup_to_match_old_server(&mut"}]}
            self.change_fixup_to_match_old_server(&mut subtree_changed);
            subtree_changed = tt::TopSubtree::from_subtree(subtree);
            subtree = subtree_changed.view();