Support repeating poi.dart forever.

dart/site/try/poi/repeat_poi.dart

Index: dart/site/try/poi/repeat_poi.dart
diff --git a/dart/site/try/poi/repeat_poi.dart b/dart/site/try/poi/repeat_poi.dart
new file mode 100644
index 0000000000000000000000000000000000000000..24e837af5d474d752574522b132fe052b2665dbc
--- /dev/null
+++ b/dart/site/try/poi/repeat_poi.dart
@@ -0,0 +1,9 @@
+// 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.
+
+import 'poi.dart' as poi;
+
+main(arguments) {
+  poi.main(arguments).then((_) => main(arguments));
+}