Format all tests.

tests/lib_strong/html/typed_arrays_arraybuffer_test.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. 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:html';
 import 'dart:typed_data';
 
 import 'package:expect/minitest.dart';
 
 main() {
   // Only perform tests if ArrayBuffer is supported.
   if (!Platform.supportsTypedData) {
     return;
   }
 
   test('constructor', () {
-      var a = new Int8List(100);
-      expect(a.lengthInBytes, 100);
+    var a = new Int8List(100);
+    expect(a.lengthInBytes, 100);
   });
 
   test('sublist1', () {
-      var a = new Int8List(100);
-      var s = a.sublist(10, 40);
-      expect(s.length, 30);
+    var a = new Int8List(100);
+    var s = a.sublist(10, 40);
+    expect(s.length, 30);
   });
 
   test('sublist2', () {
-      var a = new Int8List(100);
-      expect(() => a.sublist(10, 400), throwsRangeError);
+    var a = new Int8List(100);
+    expect(() => a.sublist(10, 400), throwsRangeError);
   });
 
   test('sublist3', () {
-      var a = new Int8List(100);
-      expect(() => a.sublist(50, 10), throwsRangeError);
+    var a = new Int8List(100);
+    expect(() => a.sublist(50, 10), throwsRangeError);
   });
 
   test('sublist4', () {
-      var a = new Int8List(100);
-      expect(() => a.sublist(-90, -30), throwsRangeError);
+    var a = new Int8List(100);
+    expect(() => a.sublist(-90, -30), throwsRangeError);
   });
 }