diff -r 000000000000 -r 6474c204b198 js/src/tests/test262/ch08/8.6/S8.6_A2_T1.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/test262/ch08/8.6/S8.6_A2_T1.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,23 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/**
+ * Do not crash with postincrement custom property
+ *
+ * @path ch08/8.6/S8.6_A2_T1.js
+ * @description Try to implement postincrement for custom property
+ */
+
+var __map={foo:"bar"};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+
+__map.foo++;
+if (!isNaN(__map.foo)) {
+  $ERROR('#1: var __map={foo:"bar"}; __map.foo++; __map.foo === Not-a-Number. Actual: ' + (__map.foo));
+}
+
+//
+//////////////////////////////////////////////////////////////////////////////
+