Add analytics to analyzer-cli and analysis server.

pkg/analyzer_cli/test/errors_upgrade_fails_cli_test.dart

 // Copyright (c) 2017, 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 'dart:io';
 
 import 'package:analyzer_cli/src/driver.dart';
 import 'package:analyzer_cli/src/options.dart';
 import 'package:path/path.dart' as path;
 import 'package:test/test.dart';
@@ skipping 24 matching lines @@
   void tearDown() {
     outSink = savedOutSink;
     errorSink = savedErrorSink;
     exitCode = savedExitCode;
     exitHandler = savedExitHandler;
   }
 
   test_once() async {
     String testDir =
         path.join(testDirectory, 'data', 'error_upgrade_fails_cli');
-    Driver driver = new Driver();
+    Driver driver = new Driver(isTesting: true);
     await driver.start([path.join(testDir, 'foo.dart')]);
 
     expect(exitCode, 3);
   }
 }