patch applied (testsuite): expect failure for profthreaded (NCG floating pt differences)

[Simon Marlow]

Fri Feb 29 02:08:56 PST 2008  Simon Marlow <simonmar at microsoft.com>
  * expect failure for profthreaded (NCG floating pt differences)

    M ./tests/ghc-regress/programs/galois_raytrace/test.T -1 +1