diff -r 000000000000 -r 6474c204b198 js/src/tests/js1_8_5/regress/regress-672893.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/js1_8_5/regress/regress-672893.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,18 @@
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/licenses/publicdomain/
+
+function f() {
+    return function () { return function () { return function () {
+    return function () { return function () { return function () {
+    return function () { return function () { return function () {
+    return function () { return function () { return function () {
+    return function () { return function () { return function (a) {
+        var v = a;
+	assertEq(v, 42);
+	return function() { return v; };
+    }; }; }; }; }; }; }; }; }; }; }; }; }; }; };
+};
+
+assertEq(f()()()()()()()()()()()()()()()(42)(), 42);
+
+reportCompare(0, 0, 'ok');