FMS crashes with large RegExp

I've had some problems with FMS crashing when trying to execute or compile large regular expressions.  This is the most easily reproducible scenario:

var patterns = [];

for(var iter = 0; iter < Math.pow(2, 16); iter++)

{

      patterns.push('a');

}

var filter = new RegExp('('+patterns.join('|')+')', 'i');

2^16 dies, 2^16 - 1 works fine.  Understandable that it crashes with such a big RegExp, but the problem I have with FMS is that the error messages are useless when it crashes.  "Experienced 1 failure(s)!" is all I get.  So my question is; can we get better debug info when FMS crashes?

Thanks,

Sean