{"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":"StructurallyRelateAliases::No"}]}
                StructurallyRelateAliases::No => self.generalize_alias_ty(data),
            ty::Alias(_, data) => match self.structurally_relate_aliases {
                StructurallyRelateAliases::Yes => relate::structurally_relate_tys(self, t, t),