new smatch

*** 34,47 ****
  {
          if (sm->state != &ok)
                  set_state(my_id, sm->name, sm->sym, &ok);
  }
  
! static void pre_merge_hook(struct sm_state *sm)
  {
          if (is_impossible_path())
!                 set_state(my_id, sm->name, sm->sym, &ok);
  }
  
  static int is_freed(struct expression *expr)
  {
          struct sm_state *sm;
--- 34,47 ----
  {
          if (sm->state != &ok)
                  set_state(my_id, sm->name, sm->sym, &ok);
  }
  
! static void pre_merge_hook(struct sm_state *cur, struct sm_state *other)
  {
          if (is_impossible_path())
!                 set_state(my_id, cur->name, cur->sym, &ok);
  }
  
  static int is_freed(struct expression *expr)
  {
          struct sm_state *sm;