feat(benchmarks): Add basic dart transformer benchmarks.

Adds simple benchmarks for various transformation phases, as well as hello_world.
Does not integrate these into any benchmark frameworks yet.

modules/angular2/test/benchmark/transform/bind_generator/simple.dart

@@ -0,0 +1,45 @@
+library angular2.benchmark.transform.bind_generator.simple;
+
+import 'dart:async';
+import 'package:angular2/src/transform/common/options.dart';
+import 'package:angular2/src/transform/bind_generator/transformer.dart';
+import 'package:barback/barback.dart';
+import 'package:code_transformers/benchmarks.dart';
+import 'package:unittest/unittest.dart';
+
+Future main() => runBenchmark();
+
+allTests() {
+  test('Bind Generator Benchmark Runs', runBenchmark);
+}
+
+Future runBenchmark() async {
+  var options = new TransformerOptions(['this_is_ignored.dart']);
+  var files = {new AssetId('a', 'a.ng_deps.dart'): aContents};
+  var benchmark =
+      new TransformerBenchmark([[new BindGenerator(options)]], files);
+  print('\nRunning bind_generator benchmark...');
+  var result = await benchmark.measure();
+  print('Done, took ${result.round()}μs on average.');
+}
+
+const aContents = '''
+library bar.ng_deps.dart;
+
+import 'bar.dart';
+import 'package:angular2/src/core/annotations/annotations.dart';
+
+bool _visited = false;
+void initReflector(reflector) {
+  if (_visited) return;
+  _visited = true;
+  reflector
+    ..registerType(ToolTip, {
+      'factory': () => new ToolTip(),
+      'parameters': const [],
+      'annotations': const [
+        const Decorator(
+            selector: '[tool-tip]', bind: const {'text': 'tool-tip'})
+      ]
+    });
+}''';