diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/jaeger/recompile/property.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/jaeger/recompile/property.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,26 @@
+
+/* Handle recompilation on undefined properties and array holes. */
+
+var v = {};
+if (typeof v == 'string')
+  v.x = 0;
+function prop(v)
+{
+  var z = v.x + 1;
+  assertEq(z, NaN);
+}
+prop(v);
+
+v = [];
+v[0] = 0;
+v[1] = 1;
+v[3] = 3;
+v[4] = 4;
+function elem(x)
+{
+  var x = "";
+  for (var i = 0; i < 5; i++)
+    x += v[i];
+  assertEq(x, "01undefined34");
+}
+elem(v);