Revert "fixes #173, ability to use native JS indexers"

test/codegen/expect/sunflower/dom.js

Index: test/codegen/expect/sunflower/dom.js
diff --git a/test/codegen/expect/sunflower/dom.js b/test/codegen/expect/sunflower/dom.js
index 1c957b2680ee88345b83afbddd56b75aaf533bf6..48461cb9f55575589f4dd91f510461118b084af3 100644
--- a/test/codegen/expect/sunflower/dom.js
+++ b/test/codegen/expect/sunflower/dom.js
@@ -19,11 +19,8 @@ var core = dart.import(core);
     constructors: () => ({Overload: [Overload, []]})
   });
   let overload = dart.const(new Overload());
-  class JsIndexer extends core.Object {
-    JsIndexer() {
-    }
-  }
   let EventListener = dart.typedef('EventListener', () => dart.functionType(dart.void, [Event]));
+  class Event extends core.Object {}
   let InputElement = HTMLInputElement;
   let CanvasElement = HTMLCanvasElement;
   class RenderingContext extends core.Object {}
@@ -44,8 +41,8 @@ var core = dart.import(core);
   exports.JsName = JsName;
   exports.Overload = Overload;
   exports.overload = overload;
-  exports.JsIndexer = JsIndexer;
   exports.EventListener = EventListener;
+  exports.Event = Event;
   exports.InputElement = InputElement;
   exports.CanvasElement = CanvasElement;
   exports.RenderingContext = RenderingContext;