diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/testApplyUnbox.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/testApplyUnbox.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,11 @@
+function testApplyUnboxHelper(f,a) {
+    var q;
+    for (var i = 0; i < 10; ++i)
+        q = f.apply(f,a);
+    return q;
+}
+function testApplyUnbox() {
+    var f = function(x) { return x; }
+    return [testApplyUnboxHelper(f,[1]), testApplyUnboxHelper(f,[true])].join(",");
+}
+assertEq(testApplyUnbox(), "1,true");