{"ast_node_type":"other","tokens":[{"end":72,"kind":"keyword","start":0,"text":"//"}]}
        // If box is not present, this pass doesn't need to do anything.
    fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
        let Some(def_id) = tcx.lang_items().owned_box() else { return };