Move service library test into observatory package.

tests/standalone/vmservice/allocations_test.dart

-// 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 allocations_test;
-
-import 'test_helper.dart';
-import 'package:expect/expect.dart';
-import 'package:observatory/service_io.dart';
-
-import 'dart:io';
-
-main() {
-  String script = 'allocations_script.dart';
-  var process = new TestLauncher(script);
-  process.launch().then((port) {
-    String addr = 'ws://localhost:$port/ws';
-    new WebSocketVM(new WebSocketVMTarget(addr)).get('vm')
-        .then((VM vm) => vm.isolates.first.load())
-        .then((Isolate isolate) => isolate.rootLib.load())
-        .then((Library lib) {
-          Expect.isTrue(lib.url.endsWith(script));
-          return lib.classes.first.load();
-        })
-        .then((Class fooClass) {
-          Expect.equals('Foo', fooClass.name);
-          Expect.equals(3,
-                        fooClass.newSpace.accumulated.instances +
-                        fooClass.oldSpace.accumulated.instances);
-          exit(0);
-        });
-  });
-}