diff --git a/modules/di/src/reflector.dart b/modules/di/src/reflector.dart
index 9b88d9c9a9..0de5ba57b1 100644
--- a/modules/di/src/reflector.dart
+++ b/modules/di/src/reflector.dart
@@ -6,11 +6,11 @@ import 'key.dart' show Key, Dependency;
 import 'exceptions.dart' show NoAnnotationError;
 
 class Reflector {
-  factoryFor(Type type) {
+  Function factoryFor(Type type) {
     return _generateFactory(type);
   }
 
-  convertToFactory(Function factory) {
+  Function convertToFactory(Function factory) {
     return (args) => Function.apply(factory, args);
   }
 
@@ -22,7 +22,7 @@ class Reflector {
     return (args) => create(name, args).reflectee;
   }
 
-  dependencies(Type type) {
+  List<Dependency> dependencies(Type type) {
     ClassMirror classMirror = reflectType(type);
     MethodMirror ctor = classMirror.declarations[classMirror.simpleName];
 
diff --git a/modules/di/test/di/async_spec.js b/modules/di/test/di/async_spec.js
index cb7444ba88..2efc8625f3 100644
--- a/modules/di/test/di/async_spec.js
+++ b/modules/di/test/di/async_spec.js
@@ -34,7 +34,7 @@ export function main () {
         expect(p).toBeFuture();
       });
 
-      it('should return a future when if the binding is sync', function() {
+      it('should return a future if the binding is sync', function() {
         var injector = new Injector([
           SynchronousUserList
         ]);
@@ -42,10 +42,13 @@ export function main () {
         expect(p).toBeFuture();
       });
 
-      it('should return the injector', function() {
+      it('should return the injector', function(done) {
         var injector = new Injector([]);
         var p = injector.asyncGet(Injector);
-        expect(p).toBeFuture();
+        p.then(function(injector) {
+          expect(injector).toBe(injector);
+          done();
+        });
       });
 
       it('should return a future when instantiating a sync binding ' +
diff --git a/modules/facade/src/collection.dart b/modules/facade/src/collection.dart
index 151f36d2fa..9b8a179474 100644
--- a/modules/facade/src/collection.dart
+++ b/modules/facade/src/collection.dart
@@ -30,8 +30,8 @@ class ListWrapper {
   static last(List list) {
     return list.last;
   }
-  static reversed(List list) {
-    return list.reversed;
+  static List reversed(List list) {
+    return list.reversed.toList();
   }
   static void push(List l, e) { l.add(e); }
 }