Spelling fixes e to i.

tests/lib_strong/html/element_test.dart

 // Copyright (c) 2011, 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.
 
 library ElementTest;
 
 import 'package:unittest/unittest.dart';
 import 'package:unittest/html_individual_config.dart';
 import 'dart:async';
 import 'dart:html';
@@ skipping 916 matching lines @@
           ['a capture', 'b capture', 'b no-capture', 'a no-capture']);
     });
   });
 
   group('ElementList', () {
     // Tests for methods on the DOM class 'NodeList'.
     //
     // There are two interesting things that are checked here from the viewpoint
     // of the dart2js implementation of a 'native' class:
     //
-    //   1. Some methods are implementated from by 'Object' or 'Interceptor';
+    //   1. Some methods are implemented from by 'Object' or 'Interceptor';
     //      some of these tests simply check that a method can be called.
     //   2. Some methods are implemented by mixins.
 
     ElementList<Element> makeElementList() =>
         (new Element.html("<div>Foo<br/><!--baz--><br/><br/></div>"))
             .queryAll('br');
 
     test('hashCode', () {
       var nodes = makeElementList();
       var hash = nodes.hashCode;
@@ skipping 43 matching lines @@
     });
 
     test('sublist', () {
       var range = makeElementList().sublist(1, 3);
       expect(range.length, 2);
       expect(range[0], isBRElement);
       expect(range[1], isBRElement);
     });
   });
 }