[MERGE] provide lock debugging in tests

[Martin Pool]

On Fri, Apr 4, 2008 at 4:58 PM, Martin Pool <mbp at canonical.com> wrote:
> Martin Pool has voted resubmit.
>  Status is now: Resubmit
>  Comment:
>  It's much better to have options that turn on debug trace not cause side
> effects; please use -Dlock_checks or something instead.
>
>  It seems like it would not be much harder to check that they are actually
> paired up and print the one

(pressed Submit too soon)

I meant to say ... and print the lock that caused the trouble, but I
guess someone can add this if they want it.

Finally, please remember to update the list of debug flags.

-- 
Martin <http://launchpad.net/~mbp/>