diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/jaeger/bug557075.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/jaeger/bug557075.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,8 @@
+// |jit-test| error: TypeError
+
+for (l in [Math.h.h.h.h.h.I.h.h.h.h.h.h.h.I.h.I]) {
+  t.x
+}
+
+/* Don't crash or assert. */
+