diff -r 000000000000 -r 6474c204b198 js/src/tests/ecma_3/FunExpr/regress-524826.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/ecma_3/FunExpr/regress-524826.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,28 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+var BUGNUMBER = 524826;
+var summary = 'null-closure property initialiser mis-brands object literal scope';
+var actual;
+var expect;
+
+printBugNumber(BUGNUMBER);
+printStatus(summary);
+
+function make(g) {
+    var o = {f: function(a,b) { return a*b; }, g: g};
+    return o;
+}
+var z = -1;
+var x = make(function(c) { return c*z; });
+var y = make(function(c) { return -c*z; });
+
+function callg(o, c) { return o.g(c); };
+actual = callg(x, 1);
+expect = -callg(y, 1);
+
+reportCompare(expect, actual, summary);
+
+printStatus("All tests passed!");