Using an ActiveX object (such as XMLHttpRequest in IE 6) as a key gives an error

```
The following code in IE gives an error when it should create an entry in
the hash table:

var h = new Hashtable();
var x = new ActiveXObject("Msxml2.XMLHTTP.6.0");
h.put(x, "Some value");

// Error thrown: Object doesn't support this property or method

```

Original issue reported on code.google.com by `timd...@gmail.com` on 21 Mar 2010 at 11:53
