[PATCH] Add TSVC tests.

[David Edelsohn]

Hi, Martin

These testcases rely on memalign in tsvc.h.  memalign is provided in
Linux and Solaris, but is not part of Posix, and it is not available
in AIX.  Posix defines posix_memalign, which also is available in AIX.

Should the tsvc.h use posix_memalign?  Always?  Only when memalign is
not available?

Thanks, David