Unbreak SDK frogc.

dart/frog/leg/dart2js.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('dart2js');
 
 #import('dart:io');
 #import('dart:utf');
 
 #import('../../lib/uri/uri.dart');
@@ skipping 133 matching lines @@
 }
 
 String readAll(String filename) {
   var file = (new File(filename)).openSync();
   var length = file.lengthSync();
   var buffer = new List<int>(length);
   var bytes = file.readListSync(buffer, 0, length);
   file.closeSync();
   return new String.fromCharCodes(new Utf8Decoder(buffer).decodeRest());
 }