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

pkg/analysis_server/test/domain_analysis_test.dart

Index: pkg/analysis_server/test/domain_analysis_test.dart
diff --git a/pkg/analysis_server/test/domain_analysis_test.dart b/pkg/analysis_server/test/domain_analysis_test.dart
index 33acd8f941625c217b7191ef31648fe48b620a28..1b52846666a740f2ae9f7c23cfde55c3ed22eae4 100644
--- a/pkg/analysis_server/test/domain_analysis_test.dart
+++ b/pkg/analysis_server/test/domain_analysis_test.dart
@@ -47,8 +47,7 @@ main() {
     serverChannel = new MockServerChannel();
     resourceProvider = new MemoryResourceProvider();
     server = new AnalysisServer(serverChannel, resourceProvider,
-        new MockPackageMapProvider(), null);
-    server.defaultSdk = new MockSdk();
+        new MockPackageMapProvider(), null, new MockSdk());
     handler = new AnalysisDomainHandler(server);
   });
 
@@ -461,8 +460,7 @@ class AnalysisTestHelper {
     serverChannel = new MockServerChannel();
     resourceProvider = new MemoryResourceProvider();
     server = new AnalysisServer(serverChannel, resourceProvider,
-        new MockPackageMapProvider(), null);
-    server.defaultSdk = new MockSdk();
+        new MockPackageMapProvider(), null, new MockSdk());
     handler = new AnalysisDomainHandler(server);
     // listen for notifications
     Stream<Notification> notificationStream =