feat(ElementInjector): implement ElementInjector

modules/facade/src/collection.dart

@@ -22,6 +22,8 @@ class ListWrapper {
   static void set(m, k, v) { m[k] = v; }
   static contains(m, k) => m.containsKey(k);
   static map(list, fn) => list.map(fn).toList();
+  static find(List list, fn) => list.firstWhere(fn, orElse:() => null);
+  static any(List list, fn) => list.any(fn);
   static forEach(list, fn) {
     list.forEach(fn);
   }

modules/facade/src/collection.es6

@@ -41,6 +41,18 @@ export class ListWrapper {
     if (!array || array.length == 0) return null;
     return array[array.length - 1];
   }
+  static find(list:List, pred:Function) {
+    for (var i = 0 ; i < list.length; ++i) {
+      if (pred(list[i])) return list[i];
+    }
+    return null;
+  }
+  static any(list:List, pred:Function) {
+    for (var i = 0 ; i < list.length; ++i) {
+      if (pred(list[i])) return true;
+    }
+    return false;
+  }
   static reversed(array) {
     var a = ListWrapper.clone(array);
     return a.reverse();

modules/facade/src/math.dart

@@ -0,0 +1,9 @@
+library angular.core.facade.math;
+
+import 'dart:math' as math;
+
+class Math {
+  static num pow(num x, num exponent) {
+    return math.pow(x, exponent);
+  }
+}

modules/facade/src/math.es6

@@ -0,0 +1 @@
+export var Math = window.Math;