Make server use the common protocol classes

pkg/analysis_server/test/edit/fixes_test.dart

Index: pkg/analysis_server/test/edit/fixes_test.dart
diff --git a/pkg/analysis_server/test/edit/fixes_test.dart b/pkg/analysis_server/test/edit/fixes_test.dart
index f8649181beb0497a9f8e8c1d2ff90e03f280ff2f..70f754298f00d39ee7efa5cc91b7b683d6af7bc4 100644
--- a/pkg/analysis_server/test/edit/fixes_test.dart
+++ b/pkg/analysis_server/test/edit/fixes_test.dart
@@ -9,7 +9,7 @@ import 'package:analysis_server/protocol/protocol_generated.dart';
 import 'package:analysis_server/src/edit/edit_domain.dart';
 import 'package:analysis_server/src/plugin/plugin_manager.dart';
 import 'package:analyzer_plugin/protocol/protocol.dart' as plugin;
-import 'package:analyzer_plugin/protocol/protocol_common.dart' as plugin;
+import 'package:analyzer_plugin/protocol/protocol_common.dart';
 import 'package:analyzer_plugin/protocol/protocol_generated.dart' as plugin;
 import 'package:analyzer_plugin/src/protocol/protocol_internal.dart' as plugin;
 import 'package:plugin/manager.dart';
@@ -56,12 +56,8 @@ main() {
   test_fromPlugins() async {
     PluginInfo info = new DiscoveredPluginInfo('a', 'b', 'c', null, null);
     plugin.AnalysisErrorFixes fixes = new plugin.AnalysisErrorFixes(
-        new plugin.AnalysisError(
-            plugin.AnalysisErrorSeverity.ERROR,
-            plugin.AnalysisErrorType.HINT,
-            new plugin.Location('', 0, 0, 0, 0),
-            'message',
-            'code'));
+        new AnalysisError(AnalysisErrorSeverity.ERROR, AnalysisErrorType.HINT,
+            new Location('', 0, 0, 0, 0), 'message', 'code'));
     plugin.EditGetFixesResult result =
         new plugin.EditGetFixesResult(<plugin.AnalysisErrorFixes>[fixes]);
     pluginManager.broadcastResults = <PluginInfo, Future<plugin.Response>>{