{"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":"ty::UserTypeKind::Ty(o_ty.raw),"}]}
                        ty::UserTypeKind::Ty(o_ty.raw),
                    ty::UserType::new_with_bounds(
                        self.fcx.collect_impl_trait_clauses_from_hir_ty(ty),