Mostly use Entity in InterceptorData

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

Index: pkg/compiler/lib/src/js_emitter/program_builder/program_builder.dart
diff --git a/pkg/compiler/lib/src/js_emitter/program_builder/program_builder.dart b/pkg/compiler/lib/src/js_emitter/program_builder/program_builder.dart
index 3f60ffa6998a774a307a91fde0884c2f95196731..809ef1f5f8bee10f67b8ac876b4e034506482db2 100644
--- a/pkg/compiler/lib/src/js_emitter/program_builder/program_builder.dart
+++ b/pkg/compiler/lib/src/js_emitter/program_builder/program_builder.dart
@@ -831,7 +831,7 @@ class ProgramBuilder {
     Iterable<js.Name> names =
         backend.oneShotInterceptorData.specializedGetInterceptorNames;
     return names.map((js.Name name) {
-      Set<ClassElement> classes =
+      Set<ClassEntity> classes =
           backend.oneShotInterceptorData.getSpecializedGetInterceptorsFor(name);
       js.Expression code = stubGenerator.generateGetInterceptorMethod(classes);
       return new StaticStubMethod(name, holder, code);