{"ast_node_type":"other","tokens":[{"end":92,"kind":"keyword","start":0,"text":"tcx.instantiate_bound_regions_with_erased(principal.with_self_ty(tcx,"}]}
            tcx.instantiate_bound_regions_with_erased(principal.with_self_ty(tcx, impl_ty));
        let trait_ref =
        assert!(!trait_ref.has_escaping_bound_vars());