Add missing error detection to identest.  Change the order in which mp_ints are destroyed to make debugging easier.  These changes facilitated detecting and fixing bug 61394.
Add missing error detection to identest.  Change the order in which
mp_ints are destroyed to make debugging easier.  These changes
facilitated detecting and fixing bug 61394.

nmav/nss,ekr/nss-old,nmav/nss,ekr/nss-old,ekr/nss-old,ekr/nss-old,nmav/nss,nmav/nss,nmav/nss,nmav/nss,ekr/nss-old,ekr/nss-old,nmav/nss,ekr/nss-old