sort imports

* sort imports

examples/stocks/test/icon_color_test.dart

@@ -4,12 +4,12 @@
 
 import 'dart:ui' as ui show window;
 
-import 'package:test/test.dart';
-import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/rendering.dart';
+import 'package:flutter_test/flutter_test.dart';
 import 'package:stocks/main.dart' as stocks;
 import 'package:stocks/stock_data.dart' as stock_data;
+import 'package:test/test.dart';
 
 Element findElementOfExactWidgetTypeGoingDown(Element node, Type targetType) {
   void walker(Element child) {

examples/stocks/test/locale_test.dart

@@ -2,11 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-import 'package:test/test.dart';
-import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
 import 'package:stocks/main.dart' as stocks;
 import 'package:stocks/stock_data.dart' as stock_data;
+import 'package:test/test.dart';
 
 void main() {
   stock_data.StockDataFetcher.actuallyFetchData = false;

examples/stocks/test_driver/scroll_perf_test.dart

@@ -3,6 +3,7 @@
 // found in the LICENSE file.
 
 import 'dart:async';
+
 import 'package:flutter_driver/flutter_driver.dart';
 import 'package:test/test.dart';