patch applied (ghc): joinToTargets: fix a case of panic "handleComponent cyclic"

[Simon Marlow]

Fri Jun 18 01:21:47 PDT 2010  Simon Marlow <marlowsd at gmail.com>
  * joinToTargets: fix a case of panic "handleComponent cyclic"

    M ./compiler/nativeGen/RegAlloc/Linear/JoinToTargets.hs -1 +2

View patch online:
http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=ghc;a=darcs_commitdiff;h=20100618082147-12142-cdc7f8811e21f374247ac628ec7bd9373614048a.gz