Split dart:builtin into dart:builtin and dart:io.

tests/standalone/src/StatusFileParserTest.dart

Index: tests/standalone/src/StatusFileParserTest.dart
diff --git a/tests/standalone/src/StatusFileParserTest.dart b/tests/standalone/src/StatusFileParserTest.dart
index e2cee07cf283026a5516f216bf49368dbdf9bd5d..ded0a0005039f40b961a0077b7cf64aca43a4277 100644
--- a/tests/standalone/src/StatusFileParserTest.dart
+++ b/tests/standalone/src/StatusFileParserTest.dart
@@ -1,9 +1,10 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
+// 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("StatusFileParserTest");
 
+#import("dart:io");
 #import("../../../tools/testing/dart/status_file_parser.dart");