Update the Angular/DI tests to latest from github.

third_party/pkg/di/benchmark/injector_benchmark_common.dart

 library di.injector_benchmark_common;
 
 import 'package:benchmark_harness/benchmark_harness.dart';
 import 'package:di/di.dart';
 
+int count = 0;
+
 class InjectorBenchmark extends BenchmarkBase {
   var injectorFactory;
   var module;
 
   InjectorBenchmark(name, this.injectorFactory) : super(name);
 
   void run() {
     Injector injector = injectorFactory([module]);
     injector.get(A);
     injector.get(B);
 
     var childInjector = injector.createChild([module]);
     childInjector.get(A);
     childInjector.get(B);
   }
 
   setup() {
     module = new Module()
       ..type(A)
       ..type(B)
       ..type(C)
       ..type(D)
       ..type(E);
   }
+
+  teardown() {
+    print(count);
+  }
 }
 
 class A {
-  A(B b, C c);
+  A(B b, C c) {
+    count++;
+  }
 }
 
 class B {
-  B(D b, E c);
+  B(D b, E c) {
+    count++;
+  }
 }
 
 class C {
+  C() {
+    count++;
+  }
 }
 
 class D {
+  D() {
+    count++;
+  }
 }
 
 class E {
+  E() {
+    count++;
+  }
 }