Unify `TraitRefs` and `PolyTraitRefs` in `ValuePairs` I did this recently with `FnSigs` and `PolyFnSigs` but didn't think to do it with `TraitRefs` and `PolyTraitRefs`.
Unify `TraitRefs` and `PolyTraitRefs` in `ValuePairs` I did this recently with `FnSigs` and `PolyFnSigs` but didn't think to do it with `TraitRefs` and `PolyTraitRefs`.