anchor.diff:        HTMLPreElement stackTacePre = domWin.document.createElement('pre');
         stackTacePre.textContent = t.stackTrace;
       }
  -    
  +
       HTMLSpanElement durationSpan = domWin.document.createElement('span');
       durationSpan.textContent = 'took ${_printDuration(t.runningTime)}';
       tableCell.appendChild(durationSpan);
  -    
  +
       return tableCell;
     }
  -  
  +
     /** Update the UI after running test. */
     void _updateDARTestUI(TestCase test_) {
       _updateResultsTable(test_, window);
       if(_runnerWindow != window) {
         _updateResultsTable(test_, _runnerWindow);
       }
  -    
  +
       if(test_.result != null) {
         _log('  Result: ${test_.result.toUpperCase()} ${test_.message}');
       }
  
positive.code:       headDiv.appendChild(close);
        headDiv.appendChild(pop);
        headDiv.appendChild(minMax);
        
        containerDiv.appendChild(headDiv);
      }
  
  
negative.code:       }, true);
        toolDiv.appendChild(exportBtn);
        testBody.appendChild(toolDiv);
  
        // Create a datalist element for showing test status
        HTMLDListElement statList = _runnerWindow.document.createElement('dl');
        statList.className = 'dt-status';
  