fix(test): use updated ngModules in blueprint (#1680)

Author: mhamel06

addon/ng2/blueprints/ng2/files/__path__/test.ts

@@ -24,9 +24,9 @@ Promise.all([
 ])
   // First, initialize the Angular testing environment.
   .then(([testing, testingBrowser]) => {
-    testing.setBaseTestProviders(
-      testingBrowser.TEST_BROWSER_DYNAMIC_PLATFORM_PROVIDERS,
-      testingBrowser.TEST_BROWSER_DYNAMIC_APPLICATION_PROVIDERS
+    testing.getTestBed().initTestEnvironment(
+      testingBrowser.BrowserDynamicTestingModule,
+      testingBrowser.platformBrowserDynamicTesting()
     );
   })
   // Then we find all the tests.