{"ast_node_type":"other","tokens":[{"end":51,"kind":"keyword","start":0,"text":"self.check_pat(inner,"}]}
        self.check_pat(inner, target_ty, pat_info);
        let target_ty = self.deref_pat_target(span, expected);
        self.register_deref_mut_bounds_if_needed(span, inner, [expected]);