Even easier observatory testing.

runtime/bin/vmservice/observatory/test/gc_script.dart

Index: runtime/bin/vmservice/observatory/test/gc_script.dart
===================================================================
--- runtime/bin/vmservice/observatory/test/gc_script.dart	(revision 39035)
+++ runtime/bin/vmservice/observatory/test/gc_script.dart	(working copy)
@@ -1,28 +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 gc_script;
-
-import 'dart:async';
-import 'dart:io';
-
-List<int> data;
-
-void grow(int iterations, int size, Duration duration) {
-  if (iterations <= 0) {
-    return;
-  }
-  data = new List<int>(size);
-  new Timer(duration, () => grow(iterations - 1, size, duration));
-}
-
-
-main() {
-  print(''); // Print blank line to signal that we are ready.
-  
-  grow(100, 1 << 24, new Duration(seconds: 1));  
-  
-  // Wait until signaled from spawning test.
-  stdin.first.then((_) => exit(0));
-}