{"ast_node_type":"other","tokens":[{"end":75,"kind":"keyword","start":0,"text":"bindings.last_mut().unwrap().1.extend(subpat_bindings);"}]}
                    bindings.last_mut().unwrap().1.extend(subpat_bindings);
                    // from `subpat_bindings`, we can introduce a fresh rib for the guard.
                    // Prevent visiting `subpat` as we've already done so above.