{"ast_node_type":"other","tokens":[{"end":61,"kind":"keyword","start":0,"text":"self.cx.expanded_inert_attrs.mark(&attr);"}]}
                    self.cx.expanded_inert_attrs.mark(&attr);
                    // `-Zmacro-stats` ignores these because they don't do any real expansion.
                    item.visit_attrs(|attrs| attrs.insert(pos, attr));