Make more use of generated code in analysis server.

pkg/analysis_server/test/search/member_references_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.search.member_references;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/protocol.dart';
-import 'package:analysis_server/src/protocol2.dart' show
-    SearchFindMemberReferencesParams, SearchFindMemberReferencesResult;
-import 'package:analysis_server/src/search/search_result.dart';
+import 'package:analysis_server/src/protocol2.dart';
 import 'package:analysis_testing/reflective_tests.dart';
 import 'package:unittest/unittest.dart';
 
 import 'abstract_search_domain.dart';
 
 
 main() {
   groupSep = ' | ';
   runReflectiveTests(MemberReferencesTest);
 }
@@ skipping 92 matching lines @@
 }
 ''');
     return findMemberReferences('foo').then((_) {
       assertHasRef(SearchResultKind.INVOCATION, 'foo(1)', false);
       assertHasRef(SearchResultKind.INVOCATION, 'foo(2)', false);
       assertHasRef(SearchResultKind.INVOCATION, 'foo(10)', true);
       assertHasRef(SearchResultKind.INVOCATION, 'foo(20)', true);
     });
   }
 }