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

packages/core/testing/src/lang_utils.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 function getTypeOf(instance: any /** TODO #9100 */) {
+  return instance.constructor;
+}
+
+export function instantiateType(type: Function, params: any[] = []) {
+  return new (<any>type)(...params);
+}