No errors in third-party packages (issue 22170)

pkg/analysis_server/lib/src/analysis_server.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 analysis.server;
 
 import 'dart:async';
 import 'dart:collection';
 import 'dart:math' show max;
 
@@ skipping 239 matching lines @@
         searchEngine = _index != null ? createSearchEngine(_index) : null {
     _performance = performanceDuringStartup;
     operationQueue = new ServerOperationQueue();
     contextDirectoryManager = new ServerContextManager(
         this, resourceProvider, packageMapProvider, instrumentationService);
     contextDirectoryManager.defaultOptions.incremental = true;
     contextDirectoryManager.defaultOptions.incrementalApi =
         analysisServerOptions.enableIncrementalResolutionApi;
     contextDirectoryManager.defaultOptions.incrementalValidation =
         analysisServerOptions.enableIncrementalResolutionValidation;
+    contextDirectoryManager.defaultOptions.generateImplicitErrors = false;
     _noErrorNotification = analysisServerOptions.noErrorNotification;
     AnalysisEngine.instance.logger = new AnalysisLogger();
     _onAnalysisStartedController = new StreamController.broadcast();
     _onFileAnalyzedController = new StreamController.broadcast();
     _onPriorityChangeController =
         new StreamController<PriorityChangeEvent>.broadcast();
     running = true;
     onAnalysisStarted.first.then((_) {
       onAnalysisComplete.then((_) {
         performanceAfterStartup = new ServerPerformance();
@@ skipping 1092 matching lines @@
   /**
    * The [PerformanceTag] for time spent in server request handlers.
    */
   static PerformanceTag serverRequests = new PerformanceTag('serverRequests');
 
   /**
    * The [PerformanceTag] for time spent in split store microtasks.
    */
   static PerformanceTag splitStore = new PerformanceTag('splitStore');
 }