Add two memory usage benchmarks

pkg/analysis_server/test/integration/integration_tests.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 test.integration.analysis;
 
 import 'dart:async';
 import 'dart:collection';
 import 'dart:convert';
 import 'dart:io';
@@ skipping 187 matching lines @@
     if (subscribeStatus) {
       futures.add(sendServerSetSubscriptions([ServerService.STATUS]));
     }
     futures.add(sendAnalysisSetAnalysisRoots([sourceDirectory.path], []));
     return Future.wait(futures);
   }
 
   /**
    * Start [server].
    */
-  Future startServer() => server.start();
+  Future startServer({int servicesPort}) =>
+      server.start(servicesPort: servicesPort);
 
   /**
    * After every test, the server is stopped and [sourceDirectory] is deleted.
    */
   Future tearDown() {
     return shutdownIfNeeded().then((_) {
       sourceDirectory.deleteSync(recursive: true);
     });
   }
 
@@ skipping 283 matching lines @@
    * Start listening to output from the server, and deliver notifications to
    * [notificationProcessor].
    */
   void listenToOutput(NotificationProcessor notificationProcessor) {
     _process.stdout
         .transform((new Utf8Codec()).decoder)
         .transform(new LineSplitter())
         .listen((String line) {
       lastCommunicationTime = currentElapseTime;
       String trimmedLine = line.trim();
+      if (trimmedLine.startsWith('Observatory listening on ')) {
+        return;
+      }
       _recordStdio('RECV: $trimmedLine');
       var message;
       try {
         message = JSON.decoder.convert(trimmedLine);
       } catch (exception) {
         _badDataFromServer('JSON decode failure: $exception');
         return;
       }
       expect(message, isMap);
       Map messageAsMap = message;
@@ skipping 67 matching lines @@
   /**
    * Start the server.  If [debugServer] is `true`, the server will be started
    * with "--debug", allowing a debugger to be attached. If [profileServer] is
    * `true`, the server will be started with "--observe" and
    * "--pause-isolates-on-exit", allowing the observatory to be used.
    */
   Future start(
       {bool debugServer: false,
       int diagnosticPort,
       bool profileServer: false,
+      int servicesPort,
       bool useAnalysisHighlight2: false}) {
     if (_process != null) {
       throw new Exception('Process already started');
     }
     _time.start();
     String dartBinary = Platform.executable;
     String rootDir =
         findRoot(Platform.script.toFilePath(windows: Platform.isWindows));
     String serverPath = normalize(join(rootDir, 'bin', 'server.dart'));
     List<String> arguments = [];
     if (debugServer) {
       arguments.add('--debug');
     }
     if (profileServer) {
-      arguments.add('--observe');
+      if (servicesPort == null) {
+        arguments.add('--observe');
+      } else {
+        arguments.add('--observe=$servicesPort');
+      }
       arguments.add('--pause-isolates-on-exit');
+    } else if (servicesPort != null) {
+      arguments.add('--enable-vm-service=$servicesPort');
     }
     if (Platform.packageRoot != null) {
       arguments.add('--package-root=${Platform.packageRoot}');
     }
     arguments.add('--checked');
     arguments.add(serverPath);
     if (diagnosticPort != null) {
       arguments.add('--port');
       arguments.add(diagnosticPort.toString());
     }
@@ skipping 261 matching lines @@
   void populateMismatches(item, List<MismatchDescriber> mismatches);
 
   /**
    * Create a [MismatchDescriber] describing a mismatch with a simple string.
    */
   MismatchDescriber simpleDescription(String description) =>
       (Description mismatchDescription) {
         mismatchDescription.add(description);
       };
 }