Res::Def(_, id) if self.cx.tcx.is_promotable_const_fn(id) => (),
// No need to walk the arguments here, `is_const_evaluatable` already did
Res::Def(..) if is_const_evaluatable(self.cx, e) => {
Res::Def(_, id) if self.cx.tcx.is_promotable_const_fn(id) => (),
// No need to walk the arguments here, `is_const_evaluatable` already did
Res::Def(..) if is_const_evaluatable(self.cx, e) => {