diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/bug774859.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/bug774859.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,16 @@
+gczeal(4,1);
+function g()
+{
+    try {
+	return [];
+    } catch (e) {}
+}
+function f()
+{
+    for (var i=0; i<2; i++) {
+	var o = {a: g(),
+		 a: g()};
+	print(i);
+    }
+}
+f();