{"ast_node_type":"other","tokens":[{"end":81,"kind":"keyword","start":0,"text":"self.register_predicates([ty::Binder::dummy(match"}]}
        self.register_predicates([ty::Binder::dummy(match self.ambient_variance {
    fn register_alias_relate_predicate(&mut self, a: Ty<'tcx>, b: Ty<'tcx>) {
            ty::Covariant => ty::PredicateKind::AliasRelate(