Update MirrorSystem

lib/mirrors/mirrors.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.
 
 // The dart:mirrors library provides reflective access for Dart program.
 //
 // For the purposes of the mirrors library, we adopt a naming
 // convention with respect to getters and setters.  Specifically, for
 // some variable or field...
 //
@@ skipping 24 matching lines @@
    */
   Map<String, LibraryMirror> get libraries;
 
   /**
    * A mirror on the isolate associated with this [MirrorSystem].
    * This may be null if this mirror system is not running.
    */
   IsolateMirror get isolate;
 
   /**
-   * A mirror on the [:Dynamic:] type.
+   * A mirror on the [:dynamic:] type.
    */
   TypeMirror get dynamicType;
 
   /**
    * A mirror on the [:void:] type.
    */
   TypeMirror get voidType;
 }
 
 /**
@@ skipping 680 matching lines @@
 
 /**
  * A [MirrorException] is used to indicate errors within the mirrors
  * framework.
  */
 class MirrorException implements Exception {
   const MirrorException(String this._message);
   String toString() => "MirrorException: '$_message'";
   final String _message;
 }