Cleaned analysis result for observatory

runtime/observatory/tests/service/get_object_store_rpc_test.dart

Index: runtime/observatory/tests/service/get_object_store_rpc_test.dart
diff --git a/runtime/observatory/tests/service/get_object_store_rpc_test.dart b/runtime/observatory/tests/service/get_object_store_rpc_test.dart
index a15abca78cf0cf906944fd8eba47d4fdce3c1089..5582895bcd1847520f945a578f6e544df811bfb0 100644
--- a/runtime/observatory/tests/service/get_object_store_rpc_test.dart
+++ b/runtime/observatory/tests/service/get_object_store_rpc_test.dart
@@ -36,9 +36,10 @@ var tests = [
     // Sanity check.
     expect(object_store.fields.length, greaterThanOrEqualTo(1));
     // Checking Closures.
-    expect(object_store.fields.singleWhere(isClosureFunctionsList), isNotNull);
-    expect(object_store.fields.singleWhere(isClosureFunctionsList).value.isList,
-        isTrue);
+    var single = object_store.fields.singleWhere(isClosureFunctionsList);
+    expect(single, isNotNull);
+    var value = single.value as Instance;
+    expect(value.isList, isTrue);
   }
 ];