Don't compile functions in a context the caller doesn't have access to

test/mjsunit/es6/regress/regress-576662.js

Index: test/mjsunit/es6/regress/regress-576662.js
diff --git a/test/mjsunit/es6/regress/regress-576662.js b/test/mjsunit/es6/regress/regress-576662.js
index ad582d663352c82423582d5df56e0cffad3c2982..2fe309d73a8734f12f7da7cf772e599dba1a673a 100644
--- a/test/mjsunit/es6/regress/regress-576662.js
+++ b/test/mjsunit/es6/regress/regress-576662.js
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+// Flags: --restricted-realms
+
 // https://code.google.com/p/chromium/issues/detail?id=576662 (simplified)
 
 Realm.create();