Support is tests

pkg/compiler/lib/src/js_emitter/type_test_registry.dart

Index: pkg/compiler/lib/src/js_emitter/type_test_registry.dart
diff --git a/pkg/compiler/lib/src/js_emitter/type_test_registry.dart b/pkg/compiler/lib/src/js_emitter/type_test_registry.dart
index 5938c6979d2180340267e1141aabe1ffa7bfd41e..b6d7c76fe843e5e04064677731c26a30992edafa 100644
--- a/pkg/compiler/lib/src/js_emitter/type_test_registry.dart
+++ b/pkg/compiler/lib/src/js_emitter/type_test_registry.dart
@@ -6,11 +6,10 @@ library dart2js.js_emitter.type_test_registry;
 
 import '../common.dart';
 import '../common_elements.dart';
-import '../elements/elements.dart' show ClassElement, MethodElement;
+import '../elements/elements.dart' show MethodElement;
 import '../elements/entities.dart';
 import '../elements/types.dart' show DartType;
-import '../elements/resolution_types.dart'
-    show ResolutionFunctionType, ResolutionTypeVariableType;
+import '../elements/resolution_types.dart' show ResolutionTypeVariableType;
 import '../elements/types.dart';
 import '../js_backend/runtime_types.dart'
     show
@@ -88,10 +87,10 @@ class TypeTestRegistry {
    * complete.  Not all classes will go away while constructors are referenced
    * from type substitutions.
    */
-  Set<ClassElement> computeClassesModifiedByEmitRuntimeTypeSupport() {
+  Set<ClassEntity> computeClassesModifiedByEmitRuntimeTypeSupport() {
     TypeChecks typeChecks = rtiChecks.requiredChecks;
-    Set<ClassElement> result = new Set<ClassElement>();
-    for (ClassElement cls in typeChecks.classes) {
+    Set<ClassEntity> result = new Set<ClassEntity>();
+    for (ClassEntity cls in typeChecks.classes) {
       if (typeChecks[cls].isNotEmpty) result.add(cls);
     }
     return result;
@@ -101,11 +100,11 @@ class TypeTestRegistry {
       MirrorsData mirrorsData, Iterable<MemberEntity> liveMembers) {
     _rtiNeededClasses = new Set<ClassEntity>();
 
-    void addClassWithSuperclasses(ClassElement cls) {
+    void addClassWithSuperclasses(ClassEntity cls) {
       _rtiNeededClasses.add(cls);
-      for (ClassElement superclass = cls.superclass;
+      for (ClassEntity superclass = _elementEnvironment.getSuperClass(cls);
           superclass != null;
-          superclass = superclass.superclass) {
+          superclass = _elementEnvironment.getSuperClass(superclass)) {
         _rtiNeededClasses.add(superclass);
       }
     }
@@ -134,8 +133,8 @@ class TypeTestRegistry {
 
     // 3.  Add classes that contain checked generic function types. These are
     //     needed to store the signature encoding.
-    for (ResolutionFunctionType type in checkedFunctionTypes) {
-      ClassElement contextClass = DartTypes.getClassContext(type);
+    for (FunctionType type in checkedFunctionTypes) {
+      ClassEntity contextClass = DartTypes.getClassContext(type);
       if (contextClass != null) {
         _rtiNeededClasses.add(contextClass);
       }