anchor.diff:      catch
           exit:{test_case_failed, Reason} ->
               {fail, no_result, no_result_type, test_case_failed, Module, Func,
  -             Args, Reason, util:get_stacktrace(), util:get_linetrace()};
  +             Args, Reason, erlang:get_stacktrace(), util:get_linetrace()};
           Error:Reason ->
               {fail, no_result, no_result_type, Error, Module, Func, Args, Reason,
  -             util:get_stacktrace(), util:get_linetrace()}
  -    end.
  +             erlang:get_stacktrace(), util:get_linetrace()}
  +    end.
  +-endif.
   
   -spec run_test(module(), atom(), non_neg_integer(), non_neg_integer(),
                  tester_parse_state:state(), integer(), test_options()) -> ok.
  
positive.code:             ErrorDesc
      end.
  
  % @doc called before the actual test to convert the input values. Can
  % be used to implement types which cannot be expressed by type-specs
  apply_feeder(Module, Func, Args, ResultType, TypeInfos) ->
  
negative.code:     Fun = get_arg_and_result_type(FunType, FeederFunType, Options),
      {var_fun, VarList, {'fun', ArgType, ResultType}} = Fun,
      Size = 30,
      GenArgs = tryToCreateValue(VarList, ArgType, Size, TypeInfos),
      case GenArgs of
          {ok, Args} ->
              case proplists:get_bool(with_feeder, Options) of
  