anchor.diff:                  child: InkWell(
                     onTap: () {
                       controller.onSelectRow(row);
  +                    // TODO(gmoothart): It may be possible to capture the tap
  +                    // and request focus directly from the InspectorTree. Then
  +                    // we wouldn't need this.
  +                    controller.requestFocus();
                     },
                     child: Container(
                       height: rowHeight,
  
positive.code:     _scrollControllerX.dispose();
      _scrollControllerY.dispose();
      constraintDisplayController?.dispose();
    }
  
    void _onScrollYChange() {
  
negative.code: import 'package:flutter/foundation.dart';
  import 'package:flutter/material.dart';
  import 'package:pedantic/pedantic.dart';
  import 'package:flutter/services.dart';
  
  import '../../flutter/auto_dispose_mixin.dart';
  import '../../flutter/collapsible_mixin.dart';
  