Update charted to 0.4.8 and roll

packages/intl/test/message_extraction/foo_messages_all.dart

Index: packages/intl/test/message_extraction/foo_messages_all.dart
diff --git a/packages/intl/test/message_extraction/foo_messages_all.dart b/packages/intl/test/message_extraction/foo_messages_all.dart
deleted file mode 100644
index 06b482e7acbe1663f82ab8ccb55d07a03aa06361..0000000000000000000000000000000000000000
--- a/packages/intl/test/message_extraction/foo_messages_all.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// 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.
-
-library keep_the_static_analysis_from_complaining;
-
-initializeMessages(_) => throw new UnimplementedError(
-    "This entire file is only here to make the static"
-    " analysis happy. It will be generated during actual tests.");