diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/auto-regress/bug779818.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/auto-regress/bug779818.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,12 @@
+// Binary: cache/js-dbg-64-2169bca0c9a5-linux
+// Flags: --ion-eager
+//
+
+var SECTION = "lexical-015";
+(function() {
+    for (var a = 0; a < 9; a++) {
+        if (SECTION[a]) {
+            while (arguments[a]) break;
+        }
+    }
+})()