Make EditableText cursor configurable - #18888

diff --git a/packages/flutter_goldens/lib/flutter_goldens.dart b/packages/flutter_goldens/lib/flutter_goldens.dart
index 5f960788a..ce0529b6b 100644
--- a/packages/flutter_goldens/lib/flutter_goldens.dart
+++ b/packages/flutter_goldens/lib/flutter_goldens.dart
@@ -1,23 +1,24 @@
 // Copyright 2018 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.

 import 'dart:async';
+import 'dart:convert';
 import 'dart:io' as io;
 import 'dart:typed_data';

 import 'package:collection/collection.dart';
 import 'package:file/file.dart';
 import 'package:file/local.dart';
+import 'package:flutter/foundation.dart';
 import 'package:flutter_test/flutter_test.dart';
-import 'package:meta/meta.dart';
 import 'package:platform/platform.dart';
 import 'package:process/process.dart';

 // If you are here trying to figure out how to use golden files in the Flutter
 // repo itself, consider reading this wiki page:
 // https://github.com/flutter/flutter/wiki/Writing-a-golden-file-test-for-package%3Aflutter

 const String _kFlutterRootKey = 'FLUTTER_ROOT';

 /// Main method that can be used in a `flutter_test_config.dart` file to set
@@ -81,22 +82,25 @@ class FlutterGoldenFileComparator implements GoldenFileComparator {
     return new FlutterGoldenFileComparator(goldens.repositoryRoot.childDirectory(testDirectoryRelativePath).uri);
   }

   @override
   Future<bool> compare(Uint8List imageBytes, Uri golden) async {
     final File goldenFile = _getGoldenFile(golden);
     if (!goldenFile.existsSync()) {
       throw new TestFailure('Could not be compared against non-existent file: "$golden"');
     }
     final List<int> goldenBytes = await goldenFile.readAsBytes();
-    // TODO(tvolkert): Improve the intelligence of this comparison.
-    return const ListEquality<int>().equals(goldenBytes, imageBytes);
+    if (const ListEquality<int>().equals(goldenBytes, imageBytes))
+      return true; // they match
+    final String encoded = base64.encode(imageBytes);
+    debugPrint('base64 encoded image:\n$encoded\nEND');
+    return false;
   }

   @override
   Future<void> update(Uri golden, Uint8List imageBytes) async {
     final File goldenFile = _getGoldenFile(golden);
     await goldenFile.parent.create(recursive: true);
     await goldenFile.writeAsBytes(imageBytes, flush: true);
   }

   File _getGoldenFile(Uri uri) {