anchor.diff:        originalRefs,
         _debuggerState.rootLib.uri,
         _debuggerState.commonScriptPrefix,
  -      selectScripRef: selectedScriptRef,
  +      selectScriptRef: selectedScriptRef,
       );
   
       // Lose all other intermediate matches - we're done.
  
positive.code:           // Set selection one item up.
            if (_selectRow > 0) {
              _selectRow -= 1;
              _scriptsView.scrollAndHilight(_selectRow, -1);
            }
            e.preventDefault();
            break;
  
negative.code:         childToScrollTo = itemIndex;
          final int scrollPosition =
              childToScrollTo > 0 ? childToScrollTo * itemHeight : 0;
          scrollAndHighlight(childToScrollTo, scrollPosition, top: true);
          break;
        case ListDirection.home:
          childToScrollTo = 0;
          scrollAndHighlight(childToScrollTo, childToScrollTo);
          break;
        case ListDirection.end:
          childToScrollTo = _items.items.length - 1;
          final int scrollPosition =
              childToScrollTo > 0 ? (childToScrollTo - itemsVis) * itemHeight : 0;
          scrollAndHighlight(childToScrollTo, scrollPosition);
          break;
      }
  
  