[nem-en] Random test.exe stack overflow

[Snaury]

Hi everyone,

Yesterday it was second time that I got test.exe crash with
StackOverflow, both times while doing make check after doing make
clean, configure and make. Unfortunately both times it was with my
try/catch patches active, so I thought maybe I made a typo somewhere,
but so far I could find none. Even more unfortunately, I run make
check again and again and it doesn't crash! Both times (it seems) it
was while compiling positive/matching.n. I tried to reproduce this at
work, tried now at home, but just doesn't happen anymore.

Any ideas why this could happen? And had anyone encountered same thing
on trunk sources?

P.S.
Just now a thought crossed my mind and I remembered a stack workaround
I've seen for ncc.exe, is it possible that test.exe suffers the same
problem under some rare conditions?