anchor.diff:              printErr (num, tok, err)
           | Parser.Success (mAst, _, _) ->
               mAst.PrintAst() 
  -            RNGLR.ParseCalcErrorAmb.defaultAstToDot mAst "Calc error inside in braces.dot"                          
  +            if needPrintToDot 
  +            then RNGLR.ParseCalcErrorAmb.defaultAstToDot mAst "Calc error inside in braces.dot"                          
   
       [<Test>]
       member test.``Calc error inside in braces2``() =
  
positive.code:         | Parser.Error (num, tok, err,_, _) -> printErr (num, tok, err)
          | Parser.Success (mAst, _, errors) ->
             mAst.PrintAst()
             RNGLR.ParsePrintErrorInfoEOF.defaultAstToDot mAst "PrintErrorInfo.dot"
             let res = translate RNGLR.ParsePrintErrorInfo.translate mAst errors
             Assert.AreEqual([-1], res)
  
  
negative.code:             printErr (num, tok, err)
          | Parser.Success (mAst, _ ,_) ->
              mAst.PrintAst() 
              if needPrintToDot 
              then RNGLR.ParseCalcErrorAmb.defaultAstToDot mAst "Calc missing operand.dot"
  
      //[<Test>]
      member test.``Calc missing right brace``() = 
  