diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/baseline/bug848743-2.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/baseline/bug848743-2.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,14 @@
+var gTestcases = new Array();
+var gTc = gTestcases.length;
+var setterCalled = false;
+function TestCase() {
+    gTestcases[gTc++] = this;
+}
+for(var i = 0; i < 13; ++i) {
+    var testcase = new TestCase();
+}
+Array.prototype.__defineSetter__(32, function() { setterCalled = true; });
+for(var i = 0; i < 20; ++i) {
+    var testcase = new TestCase();
+}
+assertEq(setterCalled, true);