{"ast_node_type":"function","tokens":[{"end":66,"kind":"keyword","start":0,"text":"fn"}]}
    fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
    #[instrument(level = "debug", skip(self, tcx, body))]
        debug!(def_id = ?body.source.def_id());