diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/testInterpreterReentry7.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/testInterpreterReentry7.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,11 @@
+function testInterpreterReentry7() {
+    var arr = [0, 1, 2, 3, 4];
+    arr.__defineSetter__("4", function(x) { this._4 = x; });
+    for (var i = 0; i < 5; i++)
+        arr[i] = "grue";
+    var tmp = arr._4;
+    for (var p in arr)
+        arr[p] = "bleen";
+    return tmp + " " + arr._4;
+}
+assertEq(testInterpreterReentry7(), "grue bleen");