[Patch] Transition from abort to gcc_assert

[Ryan Mansfield]

Mike,

> I've audited the entire patch, and it all look fine, except for the
> two bits noted below.

Thank you for your review and corrections. 

> I can approve the objc bits, directly, you can check in the objc
> bits.  The other bits will still need someone to rubber stamp them.

I don't have write after approval access so I can't check them in. Could you
check in the objc bits on my behalf or should I request write after approval
access? I hope to contribute much more meaningful patches in the future so
this might be worthwhile.

Regards,
 
Ryan Mansfield