diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/ion/bug851067.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/ion/bug851067.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,6 @@
+function toPrinted(value) {
+  value = String(value);
+}
+String = Array;
+toPrinted(123);
+evaluate('toPrinted("foo");');