{"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"sym::atomic_fence"}]}
        sym::atomic_fence | sym::atomic_singlethreadfence => (0, 1, Vec::new(), tcx.types.unit),
        | sym::atomic_umin => (1, 1, vec![Ty::new_mut_ptr(tcx, param(0)), param(0)], param(0)),