Location.reload should not be writable. The property is currently marked as Readonly and getOwnPropertyDescriptor() correctly reports that the property is not writable. However, if you actually try to set it, it will work as long as the Location object has not been reified. This needs to be fixed.
Created attachment 273003 [details] Patch
Comment on attachment 273003 [details] Patch Clearing flags on attachment: 273003 Committed r197576: <http://trac.webkit.org/changeset/197576>
All reviewed patches have been landed. Closing bug.