patch applied (testsuite): make this .T file more multi-thread-friendly

[Simon Marlow]

Wed May 14 02:10:58 PDT 2008  Simon Marlow <simonmar at microsoft.com>
  * make this .T file more multi-thread-friendly
  use extra_clean, and avoid top-level runCmd

    M ./tests/ghc-regress/ffi/should_run/all.T -9 +11

View patch online:
http://darcs.haskell.org/testsuite/_darcs/patches/20080514091058-760e2-813e26fada99173676902fddb4a0cd7e7319f659.gz