As a temporary measure, allow SDK to be specified on analysis server cmd line.

pkg/analysis_server/test/search/search_domain_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.domain;
 
 import 'package:analysis_server/src/analysis_server.dart';
 import 'package:analysis_server/src/constants.dart';
 import 'package:analysis_server/src/protocol.dart';
 import 'package:analysis_server/src/search/search_domain.dart';
@@ skipping 13 matching lines @@
   AnalysisServer server;
   SearchDomainHandler handler;
 
   setUp(() {
     serverChannel = new MockServerChannel();
     resourceProvider = new MemoryResourceProvider();
     server = new AnalysisServer(
         serverChannel,
         resourceProvider,
         new MockPackageMapProvider(),
-        null);
-    server.defaultSdk = new MockSdk();
+        null,
+        new MockSdk());
     handler = new SearchDomainHandler(server);
   });
 
   group('SearchDomainHandler', () {
     test('findMemberReferences', () {
       var request = new Request('0', SEARCH_FIND_MEMBER_REFERENCES);
       request.setParameter(NAME, null);
       var response = handler.handleRequest(request);
       // TODO(brianwilkerson) implement
       //expect(response, isNull);
     });
   });
 }