Index EnumDeclaration definitions as top-level elements.

pkg/analysis_server/test/abstract_context.dart

Index: pkg/analysis_server/test/abstract_context.dart
diff --git a/pkg/analysis_server/test/abstract_context.dart b/pkg/analysis_server/test/abstract_context.dart
index 99f39c9f18c564fdbc0276fa59e45d4f2ee6be15..30885e8b7ae7ba3480f9d98827c3c8749cbf68d7 100644
--- a/pkg/analysis_server/test/abstract_context.dart
+++ b/pkg/analysis_server/test/abstract_context.dart
@@ -80,6 +80,13 @@ class AbstractContextTest {
     resourceResolver = new ResourceUriResolver(provider);
     context = AnalysisEngine.instance.createAnalysisContext();
     context.sourceFactory = new SourceFactory([SDK_RESOLVER, resourceResolver]);
+    {
+      AnalysisOptionsImpl options =
+          new AnalysisOptionsImpl.con1(context.analysisOptions);
+      options.enableAsync = true;
+      options.enableEnum = true;
+      context.analysisOptions = options;
+    }
   }
 
   void tearDown() {