diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/auto-regress/bug696039.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/auto-regress/bug696039.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,21 @@
+// Binary: cache/js-dbg-32-67673422f7d2-linux
+// Flags: -m -n -a
+//
+
+gczeal(2);
+var lfcode = new Array();
+lfcode.push("");
+lfcode.push("");
+while (lfcode.length > 0) {
+        var file = lfcode.shift();
+        loadFile(file);
+}
+function loadFile(lfVarx) {
+        try {
+                eval("\
+                        Array.prototype[30] = 'B';\
+                        delete Array.prototype[30];\
+                        assertEquals('edcba', a.join(''));\
+                ");
+        } catch (lfVare) {}
+}