dart2js: emit callstubs in new emitter and rename to stubs.

pkg/compiler/lib/src/js_emitter/new_emitter/model_emitter.dart

Index: pkg/compiler/lib/src/js_emitter/new_emitter/model_emitter.dart
diff --git a/pkg/compiler/lib/src/js_emitter/new_emitter/model_emitter.dart b/pkg/compiler/lib/src/js_emitter/new_emitter/model_emitter.dart
index d13108a3a767d5860f8f4e4d3794776291687681..0bb9a5a87a790911134b86c85af5e5a26e7c0c13 100644
--- a/pkg/compiler/lib/src/js_emitter/new_emitter/model_emitter.dart
+++ b/pkg/compiler/lib/src/js_emitter/new_emitter/model_emitter.dart
@@ -404,9 +404,10 @@ class ModelEmitter {
       }
     });
     Iterable<Method> isChecks = cls.isChecks;
+    Iterable<Method> stubs = cls.stubs;
     Iterable<Method> gettersSetters = _generateGettersSetters(cls);
     Iterable<Method> allMethods =
-        [methods, isChecks, gettersSetters].expand((x) => x);
+        [methods, isChecks, stubs, gettersSetters].expand((x) => x);
     elements.addAll(allMethods.expand((e) => [js.string(e.name), e.code]));
     return unparse(compiler, new js.ArrayInitializer(elements));
   }