Fix type of Iterable.

sdk/lib/_internal/compiler/implementation/js_emitter/class_emitter.dart

 // Copyright (c) 2013, 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 dart2js.js_emitter;
 
 class ClassEmitter extends CodeEmitterHelper {
   /**
    * Documentation wanted -- johnniwinther
    *
@@ skipping 277 matching lines @@
                                           ClassElement classElement,
                                           ClassBuilder builder,
                                           CodeBuffer buffer) {
     var metadata = task.metadataEmitter.buildMetadataFunction(classElement);
     if (metadata != null) {
       builder.addProperty("@", metadata);
     }
 
     if (backend.isNeededForReflection(classElement)) {
       Link typeVars = classElement.typeVariables;
-      List properties = [];
+      Iterable properties = [];
       if (task.typeVariableHandler.typeVariablesOf(classElement) != null) {
         properties = task.typeVariableHandler.typeVariablesOf(classElement)
             .map(js.toExpression);
       }
 
       ClassElement superclass = classElement.superclass;
       bool hasSuper = superclass != null;
       if ((!properties.isEmpty && !hasSuper) ||
           (hasSuper && superclass.typeVariables != typeVars)) {
         builder.addProperty('<>', new jsAst.ArrayInitializer.from(properties));
@@ skipping 284 matching lines @@
         ? new Selector.getter(member.name, member.getLibrary())
         : new Selector.setter(member.name, member.getLibrary());
     String reflectionName = task.getReflectionName(selector, name);
     if (reflectionName != null) {
       var reflectable =
           js(backend.isAccessibleByReflection(member) ? '1' : '0');
       builder.addProperty('+$reflectionName', reflectable);
     }
   }
 }