{"ast_node_type":"other","tokens":[{"end":89,"kind":"keyword","start":0,"text":"ty::CoroutineWitness(..)"}]}
            ty::CoroutineWitness(..) => bug!("type_name: unexpected `CoroutineWitness`"),
            ty::Alias(ty::Inherent, _) => bug!("type_name: unexpected inherent projection"),
        }