New analyzer snapshot.

pkg/analyzer/lib/src/generated/source_io.dart

 // Copyright (c) 2014, 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.
 
 // This code was auto-generated, is not intended to be edited, and is subject to
 // significant change. Please see the README file for more information.
 
 library engine.source.io;
 
 import 'source.dart';
@@ skipping 77 matching lines @@
 
   /**
    * Initialize a newly created source object.
    *
    * @param file the file represented by this source
    * @param flags `true` if this source is in one of the system libraries
    */
   FileBasedSource.con2(this.file, this.uriKind);
 
   @override
-  bool operator ==(Object object) => object != null && this.runtimeType == object.runtimeType && file == (object as FileBasedSource).file;
+  bool operator ==(Object object) => object != null && object is FileBasedSource && file == object.file;
 
   @override
   bool exists() => file.isFile();
 
   @override
   TimestampedData<String> get contents {
     TimeCounter_TimeCounterHandle handle = PerformanceStatistics.io.start();
     try {
       return contentsFromFile;
     } finally {
@@ skipping 400 matching lines @@
   }
 
   @override
   Source resolveAbsolute(Uri uri) {
     if (!isFileUri(uri)) {
       return null;
     }
     return new FileBasedSource.con1(new JavaFile.fromUri(uri));
   }
 }