src/HOL/Tools/primrec.ML

     val (fixes, spec) = fst (prep_spec raw_fixes raw_spec lthy);
     fun attr_bindings prefix = map (fn ((b, attrs), _) =>
       (Binding.qualify false prefix b, Code.add_default_eqn_attrib :: attrs)) spec;
     fun simp_attr_binding prefix = (Binding.qualify true prefix (Binding.name "simps"),
       map (Attrib.internal o K)
-        [Simplifier.simp_add, Nitpick_Const_Simp_Thms.add, Quickcheck_RecFun_Simp_Thms.add]);
+        [Simplifier.simp_add, Nitpick_Const_Simps.add, Quickcheck_RecFun_Simps.add]);
   in
     lthy
     |> set_group ? LocalTheory.set_group (serial_string ())
     |> add_primrec_simple fixes (map snd spec)
     |-> (fn (prefix, simps) => fold_map (LocalTheory.note Thm.generatedK)