patch applied (testsuite): add test for #4030

[Simon Marlow]

Wed May  5 04:20:40 PDT 2010  Simon Marlow <marlowsd at gmail.com>
  * add test for #4030

    A ./tests/ghc-regress/concurrent/should_run/4030.hs
    A ./tests/ghc-regress/concurrent/should_run/4030.stderr
    M ./tests/ghc-regress/concurrent/should_run/all.T +5

View patch online:
http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=testsuite;a=darcs_commitdiff;h=20100505112040-12142-b9581472c5eff5dadbd8b923f939eef9a5d8954a.gz