{"ast_node_type":"other","tokens":[{"end":47,"kind":"keyword","start":0,"text":"debug!(def_id"}]}
        debug!(def_id = ?body.source.def_id());
    fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
        if tcx.sess.mir_opt_level() < 4 && body.basic_blocks.len() > BLOCK_LIMIT {