First step towards implementing dart:typeddata library.

sdk/lib/typeddata/typeddata.dart

Index: sdk/lib/typeddata/typeddata.dart
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--- sdk/lib/typeddata/typeddata.dart	(revision 0)
+++ sdk/lib/typeddata/typeddata.dart	(revision 0)
@@ -0,0 +1,9 @@
+// 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.
+
+library dart.typeddata;
+
+import 'dart:collection';
+
+part 'typeddata_base.dart';