Handle mixed in members

tests/compiler/dart2js/serialization/model_test_helper.dart

 // Copyright (c) 2015, 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 dart2js.serialization_model_test;
 
 import 'dart:async';
 import 'dart:io';
 import 'package:async_helper/async_helper.dart';
 import 'package:expect/expect.dart';
@@ skipping 104 matching lines @@
 
 void checkResolutionEnqueuers(
     BackendUsage backendUsage1,
     BackendUsage backendUsage2,
     ResolutionEnqueuer enqueuer1,
     ResolutionEnqueuer enqueuer2,
     {bool elementEquivalence(Entity a, Entity b): areElementsEquivalent,
     bool typeEquivalence(DartType a, DartType b): areTypesEquivalent,
     bool elementFilter(Element element),
     bool verbose: false}) {
-  checkSets(enqueuer1.processedEntities, enqueuer2.processedEntities,
-      "Processed element mismatch", elementEquivalence, elementFilter: (e) {
-    return elementFilter != null ? elementFilter(e) : true;
-  }, verbose: verbose);
-
   ResolutionWorldBuilderBase worldBuilder1 = enqueuer1.worldBuilder;
   ResolutionWorldBuilderBase worldBuilder2 = enqueuer2.worldBuilder;
 
-  checkMaps(
-      worldBuilder1.getInstantiationMap(),
-      worldBuilder2.getInstantiationMap(),
-      "Instantiated classes mismatch",
-      elementEquivalence,
-      (a, b) => areInstantiationInfosEquivalent(
-          a, b, elementEquivalence, typeEquivalence),
+  checkSets(
+      enqueuer1.worldBuilder.instantiatedTypes,
+      enqueuer2.worldBuilder.instantiatedTypes,
+      "Instantiated types mismatch",
+      typeEquivalence,
       verbose: verbose);
 
   checkSets(
       enqueuer1.worldBuilder.directlyInstantiatedClasses,
       enqueuer2.worldBuilder.directlyInstantiatedClasses,
       "Directly instantiated classes mismatch",
       elementEquivalence,
       verbose: verbose);
 
-  checkSets(
-      enqueuer1.worldBuilder.instantiatedTypes,
-      enqueuer2.worldBuilder.instantiatedTypes,
-      "Instantiated types mismatch",
-      typeEquivalence,
+  checkMaps(
+      worldBuilder1.getInstantiationMap(),
+      worldBuilder2.getInstantiationMap(),
+      "Instantiated classes mismatch",
+      elementEquivalence,
+      (a, b) => areInstantiationInfosEquivalent(
+          a, b, elementEquivalence, typeEquivalence),
       verbose: verbose);
 
+  checkSets(enqueuer1.processedEntities, enqueuer2.processedEntities,
+      "Processed element mismatch", elementEquivalence, elementFilter: (e) {
+    return elementFilter != null ? elementFilter(e) : true;
+  }, verbose: verbose);
+
   checkSets(enqueuer1.worldBuilder.isChecks, enqueuer2.worldBuilder.isChecks,
       "Is-check mismatch", typeEquivalence,
       verbose: verbose);
 
   Expect.equals(backendUsage1.isInvokeOnUsed, backendUsage2.isInvokeOnUsed,
       "JavaScriptBackend.hasInvokeOnSupport mismatch");
   Expect.equals(
       backendUsage1.isFunctionApplyUsed,
       backendUsage1.isFunctionApplyUsed,
       "JavaScriptBackend.hasFunctionApplySupport mismatch");
@@ skipping 306 matching lines @@
 }
 
 bool areInstancesEquivalent(Instance instance1, Instance instance2,
     bool typeEquivalence(DartType a, DartType b)) {
   InterfaceType type1 = instance1.type;
   InterfaceType type2 = instance2.type;
   return typeEquivalence(type1, type2) &&
       instance1.kind == instance2.kind &&
       instance1.isRedirection == instance2.isRedirection;
 }