Add equivalence check of NativeData and InterceptorData

pkg/compiler/lib/src/universe/resolution_world_builder.dart

 // Copyright (c) 2017, 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.
 
 part of world_builder;
 
 abstract class ResolutionWorldBuilder implements WorldBuilder, OpenWorld {
   /// Set of all local functions in the program. Used by the mirror tracking
   /// system to find all live closure instances.
   Iterable<Local> get localFunctions;
@@ skipping 920 matching lines @@
             nativeBasicData,
             nativeDataBuilder,
             interceptorDataBuilder,
             selectorConstraintsStrategy);
 
   @override
   ClosedWorld closeWorld() {
     Map<ClassEntity, Set<ClassEntity>> typesImplementedBySubclasses =
         populateHierarchyNodes();
     _closed = true;
-    // TODO(johnniwinther): Implement this.
     return _closedWorldCache = new KernelClosedWorld(
         commonElements: _commonElements,
+        nativeData: _nativeDataBuilder.close(),
+        interceptorData: _interceptorDataBuilder.close(),
         // TODO(johnniwinther): Compute these.
         constantSystem: null,
-        nativeData: _nativeDataBuilder.close(),
-        interceptorData: null,
         backendUsage: null,
         resolutionWorldBuilder: this,
         functionSet: _allFunctions.close(),
         allTypedefs: _allTypedefs,
         mixinUses: _mixinUses,
         typesImplementedBySubclasses: typesImplementedBySubclasses,
         classHierarchyNodes: _classHierarchyNodes,
         classSets: _classSets);
   }
 
   @override
   void registerClass(ClassEntity cls) {
     throw new UnimplementedError('KernelResolutionWorldBuilder.registerClass');
   }
 }