Deref, sym::deref, deref_trait, Target::Trait;
DerefMut, sym::deref_mut, deref_mut_trait, Target::Trait;
+ DerefTarget, sym::deref_target, deref_target, Target::AssocTy;
Receiver, sym::receiver, receiver_trait, Target::Trait;
Fn, kw::Fn, fn_trait, Target::Trait;