[jscript/tests] Prevent a crash on win9x

[Jacek Caban]

Paul Vriens wrote:
> Hi,
>
> This at least prevents the crash on win9x. There are still numerous 
> failures on
> win9x but they are visible now. (I'm not so sure about returning 
> S_FALSE in this case btw).

IMO it would be better to return error code and break whole test on 
win9x or find a way to do so before running script. If we wanted to 
support win9x we'd probably need to add objects representing each 
function, which is not worth the trouble.


Thanks,
Jacek