Introducing a lint server plugin.

pkg/analysis_server/test/analysis_abstract.dart

Index: pkg/analysis_server/test/analysis_abstract.dart
diff --git a/pkg/analysis_server/test/analysis_abstract.dart b/pkg/analysis_server/test/analysis_abstract.dart
index 83eda1eda004d4d140923d19805d985c82370f49..c367665b7177592483304d20a54ae07118449abd 100644
--- a/pkg/analysis_server/test/analysis_abstract.dart
+++ b/pkg/analysis_server/test/analysis_abstract.dart
@@ -10,6 +10,7 @@ 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/linter_plugin.dart';
 import 'package:analysis_server/src/plugin/server_plugin.dart';
 import 'package:analysis_server/src/services/index/index.dart';
 import 'package:analyzer/file_system/file_system.dart';
@@ -97,7 +98,11 @@ class AbstractAnalysisTest {
   AnalysisServer createAnalysisServer(Index index) {
     ServerPlugin serverPlugin = new ServerPlugin();
     // TODO(pq): this convoluted extension registry dance needs cleanup.
-    List<Plugin> plugins = <Plugin>[serverPlugin, linterPlugin];
+    List<Plugin> plugins = <Plugin>[
+      serverPlugin,
+      linterPlugin,
+      linterServerPlugin
+    ];
     // Accessing `taskManager` ensures that AE plugins are registered.
     AnalysisEngine.instance.taskManager;
     plugins.addAll(AnalysisEngine.instance.supportedPlugins);