[modules] Add tests for the name property of default-exported functions.

test/mjsunit/modules-default-name4.js

Index: test/mjsunit/modules-default-name4.js
diff --git a/test/mjsunit/modules-default-name4.js b/test/mjsunit/modules-default-name4.js
new file mode 100644
index 0000000000000000000000000000000000000000..c69da9d02b95689553b0646af865792426b71b19
--- /dev/null
+++ b/test/mjsunit/modules-default-name4.js
@@ -0,0 +1,10 @@
+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+// MODULE
+
+import {default as goo} from "modules-skip-default-name4.js";
+assertEquals(
+    {value: "Gaga", configurable: true, writable: false, enumerable: false},
+    Reflect.getOwnPropertyDescriptor(goo, 'name'));