anchor.diff:                          none ->
                               Body = wrangler_syntax:clause_body(C),
                               case Body of 
  -                                [_] ->do_process_api_interface_funs_2(OldAPIModName,Form);
  +                                [_] ->
  +                                    do_process_api_interface_funs_2(OldAPIModName,Form);
                                   _ ->
                                       %% This condition could be relaxed.
                                       throw({error, mk_str("API interface function  ~p:~p/~p contains more than one expression"
  
positive.code:     FormStr = wrangler_prettypr:pp_a_form(Form, 'unix', [], 8),
      replace_quote_place_holder(FormStr).
  
  -spec(make_case_clause(I::integer(), C::syntaxTree()) -> syntaxTree()).
  make_case_clause(I, C) ->
      Bs = wrangler_syntax:clause_body(C),
      LastB = to_meta_vars(lists:last(Bs)),
  
negative.code:         {error, Reason} ->
              {error, Reason};
          NewFileName ->
              try wrangler_ast_server:parse_annotate_file(FileName, true) of 
                  {ok, {AnnAST, Info}} ->
                      case lists:keysearch(module, 1, Info) of
                          {value, {module, ModName}} ->
  