Add support for three more plugin requests

pkg/analysis_server/test/domain_analysis_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 test.domain.analysis;
 
 import 'dart:async';
 
 import 'package:analysis_server/plugin/protocol/protocol.dart';
 import 'package:analysis_server/src/analysis_server.dart';
 import 'package:analysis_server/src/constants.dart';
 import 'package:analysis_server/src/domain_analysis.dart';
 import 'package:analysis_server/src/plugin/server_plugin.dart';
 import 'package:analyzer/file_system/memory_file_system.dart';
 import 'package:analyzer/instrumentation/instrumentation.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/sdk.dart';
+import 'package:analyzer_plugin/protocol/protocol_generated.dart' as plugin;
 import 'package:plugin/manager.dart';
 import 'package:plugin/plugin.dart';
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
 import 'analysis_abstract.dart';
 import 'mock_sdk.dart';
 import 'mocks.dart';
 
 main() {
@@ skipping 763 matching lines @@
 
   test_beforeAnalysis() async {
     addTestFile('int V = 42;');
     createProject();
     // subscribe
     addAnalysisSubscription(AnalysisService.HIGHLIGHTS, testFile);
     // wait for analysis
     await waitForTasksFinished();
     expect(filesHighlights[testFile], isNotEmpty);
   }
+
+  test_sentToPlugins() async {
+    addTestFile('int V = 42;');
+    createProject();
+    // subscribe
+    addAnalysisSubscription(AnalysisService.HIGHLIGHTS, testFile);
+    // wait for analysis
+    await waitForTasksFinished();
+    plugin.AnalysisSetSubscriptionsParams params =
+        pluginManager.analysisSetSubscriptionsParams;
+    expect(params, isNotNull);
+    Map<plugin.AnalysisService, List<String>> subscriptions =
+        params.subscriptions;
+    expect(subscriptions, hasLength(1));
+    List<String> files = subscriptions[plugin.AnalysisService.HIGHLIGHTS];
+    expect(files, [testFile]);
+  }
 }