In this case it's function created at runtime in a js framework I think
To be more precise it's a testcase in jspec <http://visionmedia.github.com/jspec/> so if you need to reduce further you can just place a 'debugger;' statement in one of the tests there.
I'd like to add that this works great in Safari 5
Created attachment 59762 [details]
Created attachment 59763 [details]
Comment on attachment 59763 [details]