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

test/mjsunit/modules-skip-default-name9.js

Index: test/mjsunit/modules-skip-default-name9.js
diff --git a/test/message/unicode-escape-invalid-2.js b/test/mjsunit/modules-skip-default-name9.js
similarity index 87%
copy from test/message/unicode-escape-invalid-2.js
copy to test/mjsunit/modules-skip-default-name9.js
index b83665b1972e0bf26fded82d7edd44fffc3cc829..ac166f39f930e31ab6705fb305e6a8103412dac1 100644
--- a/test/message/unicode-escape-invalid-2.js
+++ b/test/mjsunit/modules-skip-default-name9.js
@@ -2,4 +2,4 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-print("\u162P");
+export default class { }