Set-up timeouts on thread-related unittests

[Iain Buclaw via Digitalmars-d]

Hi,

I've been seeing a problem on the Debian X32 build system where 
unittest process just hangs, and require manual intervention by 
the poor maintainer to kill the process manually before the build 
fails due to inactivity.

Haven't yet managed to reduce the problem (it only happens on a 
native X32 system, but not when running X32 under native x86_64), 
but thought it would be a good idea to suggest that any thread 
related tests should be safely handled by self terminating after 
a period of waiting.

Thoughts from the phobos maintainers?

Regards
Iain