Initial commit of Dart transformer to generate constructor stubs, see https://github.com/angular/an…

modules/angular2/test/transform/transform_test.dart

-library angular2.test;
+library angular2.test.transform;
 
 import 'dart:io';
 import 'package:barback/barback.dart';
 import 'package:angular2/transformer.dart';
 import 'package:code_transformers/tests.dart';
 import 'package:dart_style/dart_style.dart';
 import 'package:unittest/unittest.dart';
 import 'package:unittest/vm_config.dart';
 
 import 'common.dart';
@@ skipping 105 matching lines @@
       config.assetPathToExpectedOutputPath[key] = cache.putIfAbsent(value, () {
         var code = new File(value).readAsStringSync();
         return value.endsWith('dart') ? formatter.format(code) : code;
       });
     });
     testPhases(config.name, [
       [transform]
     ], config.assetPathToInputPath, config.assetPathToExpectedOutputPath, []);
   }
 }