Split NativeData

tests/compiler/dart2js/serialization/native_data_test.dart

Index: tests/compiler/dart2js/serialization/native_data_test.dart
diff --git a/tests/compiler/dart2js/serialization/native_data_test.dart b/tests/compiler/dart2js/serialization/native_data_test.dart
index 04e3ab4741a43cfce20793b7b0c26a264ef2f489..e9d116c69fda5270554a2ee2f6c3ab07cb994a7c 100644
--- a/tests/compiler/dart2js/serialization/native_data_test.dart
+++ b/tests/compiler/dart2js/serialization/native_data_test.dart
@@ -47,8 +47,8 @@ Future checkNativeData(Uri uri, {bool verbose: false}) async {
 
   JavaScriptBackend backend1 = compiler1.backend;
   JavaScriptBackend backend2 = compiler2.backend;
-  NativeData nativeData1 = backend1.nativeData;
-  NativeData nativeData2 = backend2.nativeData;
+  NativeDataImpl nativeData1 = backend1.nativeData;
+  NativeDataImpl nativeData2 = backend2.nativeData;
 
   checkMaps(nativeData1.jsInteropNames, nativeData2.jsInteropNames,
       "NativeData.jsInteropNames", areElementsEquivalent, equality,