{"ast_node_type":"other","tokens":[{"end":45,"kind":"keyword","start":0,"text":")"}]}
    ) -> (&'hir hir::Ty<'hir>, hir::BodyId) {
        impl_trait_position: ImplTraitPosition,
        let ty = self.lower_ty(ty, ImplTraitContext::Disallowed(impl_trait_position));