1 files changed, 17 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/bug522817.js b/js/src/jit-test/tests/basic/bug522817.js
new file mode 100644
index 000000000..25b5b99f3
--- /dev/null
+++ b/js/src/jit-test/tests/basic/bug522817.js
@@ -0,0 +1,17 @@
+// This test should not assert in a debug build.
+
+var q1={};
+var $native = function () {
+    for (var i = 0, l = arguments.length; i < l; i++) {
+        arguments[i].extend = function (props) {};
+    }
+};
+$native(q1, Array, String, Number);
+Array.extend({});
+Number.extend({});
+Object.Native = function () {
+    for (var i = 0; i < arguments.length; i++) {
+      arguments[i].eeeeee = (function(){});
+    }
+};
+new Object.Native(q1, Array, String, Number);