[v3] in-line pthread tests

[Benjamin Kosnik]

Collapses the old "thread" directory in the libstdc++ testsuite, and
moves each of the pthread tests into the appropriate subject directory. 

tested x86_64/linux

-benjamin
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 20090302-1.patch
Type: text/x-patch
Size: 28307 bytes
Desc: not available
URL: <http://gcc.gnu.org/pipermail/libstdc++/attachments/20090302/ea8df3a2/attachment.bin>