diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/testTrueShiftTrue.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/testTrueShiftTrue.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,16 @@
+// Test no assert or crash from outer recorders (bug 465145)
+function testBug465145() {
+    this.__defineSetter__("x", function(){});
+    this.watch("x", function(){});
+    y = this;
+    for (var z = 0; z < 2; ++z) { x = y };
+    this.__defineSetter__("x", function(){});
+    for (var z = 0; z < 2; ++z) { x = y };
+}
+
+function testTrueShiftTrue() {
+    var a = new Array(5);
+    for (var i=0;i<5;++i) a[i] = "" + (true << true);
+    return a.join(",");
+}
+assertEq(testTrueShiftTrue(), "2,2,2,2,2");