Revert "Remove JavaScriptBackend from ClosedWorldBase"

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

 // Copyright (c) 2014, 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.js_emitter.interceptor_stub_generator;
 
 import 'package:js_runtime/shared/embedded_names.dart' as embeddedNames;
 
 import '../common_elements.dart';
 import '../constants/values.dart';
@@ skipping 360 matching lines @@
             typeCheck);
       }
     }
     return null;
   }
 
   jsAst.Expression generateOneShotInterceptor(jsAst.Name name) {
     Selector selector =
         _oneShotInterceptorData.getOneShotInterceptorSelector(name);
     Set<ClassEntity> classes =
-        _interceptorData.getInterceptedClassesOn(selector.name, _closedWorld);
+        _interceptorData.getInterceptedClassesOn(selector.name);
     jsAst.Name getInterceptorName = _namer.nameForGetInterceptor(classes);
 
     List<String> parameterNames = <String>[];
     parameterNames.add('receiver');
 
     if (selector.isSetter) {
       parameterNames.add('value');
     } else {
       for (int i = 0; i < selector.argumentCount; i++) {
         parameterNames.add('a$i');
@@ skipping 58 matching lines @@
         }
 
         var map = new jsAst.ObjectInitializer(properties);
         elements.add(map);
       }
     }
 
     return new jsAst.ArrayInitializer(elements);
   }
 }