diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/jaeger/bug658294.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/jaeger/bug658294.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,15 @@
+test();
+function test()
+{
+  try {
+    instances = []
+    for (var i = 0; i != 2; ++i) 
+    instances[i]=constructor
+    var i = 0;
+    var instance = instances[i];
+    var name = instance.name;
+    for (var j = 1; j != instances; ++j) 
+    if (i != j && instance instanceof name[j].constructor) {}
+  } catch(ex) {}
+}
+test();