new DartCompletionPlugin

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 c367665b7177592483304d20a54ae07118449abd..de27610a7b5bcfed2efcd06d55694a0cb6ed5b3b 100644
--- a/pkg/analysis_server/test/analysis_abstract.dart
+++ b/pkg/analysis_server/test/analysis_abstract.dart
@@ -12,6 +12,7 @@ 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/provisional/completion/dart/completion_plugin.dart';
 import 'package:analysis_server/src/services/index/index.dart';
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/file_system/memory_file_system.dart';
@@ -101,7 +102,8 @@ class AbstractAnalysisTest {
     List<Plugin> plugins = <Plugin>[
       serverPlugin,
       linterPlugin,
-      linterServerPlugin
+      linterServerPlugin,
+      dartCompletionPlugin,
     ];
     // Accessing `taskManager` ensures that AE plugins are registered.
     AnalysisEngine.instance.taskManager;