feat(injector): change injector to show the full path when error happens in a constructor (async)

modules/facade/src/async.dart

@@ -8,7 +8,15 @@ class FutureWrapper {
     return new Future.value(obj);
   }
 
+  static Future error(obj) {
+    return new Future.error(obj);
+  }
+
   static Future wait(List<Future> futures){
     return Future.wait(futures);
   }
+
+  static Future catchError(Future future, Function onError){
+    return future.catchError(onError);
+  }
 }

modules/facade/src/async.es6

@@ -5,8 +5,16 @@ export class FutureWrapper {
     return Future.resolve(obj);
   }
 
+  static error(obj):Future {
+    return Future.reject(obj);
+  }
+
   static wait(futures):Future {
     if (futures.length == 0) return Future.resolve([]);
     return Future.all(futures);
   }
+
+  static catchError(future:Future, onError:Function):Future {
+    return future.catch(onError);
+  }
 }