refactor: move angular source to /packages rather than modules/@angular

packages/upgrade/test/dynamic/test_helpers.ts

@@ -0,0 +1,15 @@
+/**
+ * @license
+ * Copyright Google Inc. All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+
+export * from '../common/test_helpers';
+
+export function nodes(html: string) {
+  const div = document.createElement('div');
+  div.innerHTML = html.trim();
+  return Array.prototype.slice.call(div.childNodes);
+}