Update the Angular/DI tests to latest from github.

third_party/pkg/angular/lib/change_detection/prototype_map.dart

Index: third_party/pkg/angular/lib/change_detection/prototype_map.dart
diff --git a/third_party/pkg/angular/lib/change_detection/prototype_map.dart b/third_party/pkg/angular/lib/change_detection/prototype_map.dart
new file mode 100644
index 0000000000000000000000000000000000000000..130444184076b831118d44464deddc8e335bb2fd
--- /dev/null
+++ b/third_party/pkg/angular/lib/change_detection/prototype_map.dart
@@ -0,0 +1,37 @@
+part of angular.watch_group;
+
+class PrototypeMap<K, V> implements Map<K,V> {
+  final Map<K, V> prototype;
+  final Map<K, V> self = new Map();
+
+  PrototypeMap(this.prototype);
+
+  void operator []=(name, value) {
+    self[name] = value;
+  }
+  V operator [](name) => self.containsKey(name) ? self[name] : prototype[name];
+
+  bool get isEmpty => self.isEmpty && prototype.isEmpty;
+  bool get isNotEmpty => self.isNotEmpty || prototype.isNotEmpty;
+  // todo(vbe) include prototype keys ?
+  Iterable<K> get keys => self.keys;
+  // todo(vbe) include prototype values ?
+  Iterable<V> get values => self.values;
+  int get length => self.length;
+
+  void forEach(fn) {
+    // todo(vbe) include prototype ?
+    self.forEach(fn);
+  }
+  V remove(key) => self.remove(key);
+  clear() => self.clear;
+  // todo(vbe) include prototype ?
+  bool containsKey(key) => self.containsKey(key);
+  // todo(vbe) include prototype ?
+  bool containsValue(key) => self.containsValue(key);
+  void addAll(map) {
+    self.addAll(map);
+  }
+  // todo(vbe) include prototype ?
+  V putIfAbsent(key, fn) => self.putIfAbsent(key, fn);
+}