Dart SDK Spelling b, c, and d.

tests/html/window_nosuchmethod_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.
 
 library WindowNSMETest;
 
 import "package:expect/expect.dart";
 import 'package:unittest/unittest.dart';
 import 'package:unittest/html_config.dart';
 import 'dart:html' as dom;
@@ skipping 23 matching lines @@
       expect(false, isTrue, reason: 'Wrong exception: $e');
     }
   });
 
   test('foo', () {
     var win = things[inscrutable(0)];
     String x = win.foo('bar');
     expect(x, 'not bar');
   });
 
-  // Use dom.window direclty in case the compiler does type inference.
+  // Use dom.window directly in case the compiler does type inference.
   test('windowNonMethod2', () {
     final message = foo("Hello World");
     try {
       String x = dom.window.foo(message);
       expect(false, isTrue, reason: 'Should not reach here: $x');
     } on NoSuchMethodError catch (e) {
       // Expected exception.
     } on Exception catch (e) {
       expect(false, isTrue, reason: 'Wrong exception: $e');
     }
   });
 }