patch applied (packages/base): Use throwIO instead of throw in runInBoundThread and runInUnboundThread

[Simon Marlow]

Thu Oct 14 14:05:46 PDT 2010  Bas van Dijk <v.dijk.bas at gmail.com>
  * Use throwIO instead of throw in runInBoundThread and runInUnboundThread

    M ./Control/Concurrent.hs -10 +7

View patch online:
http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=packages/base;a=darcs_commitdiff;h=20101014210546-ae560-5788b3f93dafecafcdf648a86b8c139b2c1c7b5c.gz