Fix failure in test in --checked mode.

tests/standalone/bytedata_test.dart

 // Copyright (c) 2013, 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.
 //
 // Dart test program for testing typed data.
 
 // Library tag to be able to run in html test framework.
 library ByteDataTest;
 
 import "package:expect/expect.dart";
 import 'dart:typeddata';
 
 testGetters() {
   bool host_is_little_endian = 
     (new Uint8List.view(new Uint16List.fromList([1]).buffer))[0] == 1;
 
   var list = new Uint8List(8);
   list[0] = 0xf1;
   list[1] = 0xf2;
   list[2] = 0xf3;
   list[3] = 0xf4;
   list[4] = 0xf5;
   list[5] = 0xf6;
   list[6] = 0xf7;
   list[7] = 0xf8;
   var ba = list.buffer;
 
   ByteData bd = new ByteData.view(ba);
-  int value;
+  var value;

[srdjan, 2013/04/18 20:15:52]

Could be num, but it does not matter,

   int expected_value_be = -3598;
   int expected_value_le = -3343;
 
   value = bd.getInt16(0);  // Default is big endian access.
   Expect.equals(expected_value_be, value);
   value = bd.getInt16(0, Endianness.BIG_ENDIAN);
   Expect.equals(expected_value_be, value);
   value = bd.getInt16(0, Endianness.LITTLE_ENDIAN);
   Expect.equals(expected_value_le, value);
   value = bd.getInt16(0, Endianness.HOST_ENDIAN);
@@ skipping 299 matching lines @@
     validate64be(list);
   }
 
 }
 
 
 main() {
   testGetters();
   testSetters();
 }