src/Pure/simplifier.ML

     val loop_tac = FIRST' (map (fn (_, tac) => tac ss) (rev loop_tacs));
     val solve_tac = FIRST' (map (MetaSimplifier.solver ss)
       (rev (if safe then solvers else unsafe_solvers)));
 
     fun simp_loop_tac i =
-      Goal.asm_rewrite_goal_tac mode (solve_all_tac unsafe_solvers) ss i THEN
+      asm_rewrite_goal_tac mode (solve_all_tac unsafe_solvers) ss i THEN
       (solve_tac i ORELSE TRY ((loop_tac THEN_ALL_NEW simp_loop_tac) i));
   in simp_loop_tac end;
 
 local