let result = cx.tcx.const_eval_resolve(
cx.param_env,
- ty::Unevaluated {
- def: ty::WithOptConstParam::unknown(def_id),
- substs,
- promoted: None,
- },
+ ty::Unevaluated::new(ty::WithOptConstParam::unknown(def_id), substs),
None,
);
is_value_unfrozen_raw(cx, result, ty)