VM Service isolate listing

tests/standalone/vmservice/multiple_isolate_list_script.dart

+// 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 multiple_isolate_list_script;
+
+import 'dart:io';
+import 'dart:isolate';
+
+void isolateMain1() {
+  // Die immediately.
+  port.close();
+}
+
+void myIsolateName() {
+  // Stay running.
+  port.receive((a, b) {
+    port.close();
+  });
+}
+
+main() {
+  spawnFunction(isolateMain1);
+  spawnFunction(myIsolateName);
+  print(''); // Print blank line to signal that we are ready.
+  // Wait until signaled from spawning test.
+  stdin.first.then((_) => exit(0));
+}