patch applied (ghc): fix extraction of command stack of arguments of arrow "forms" (fixes #4236)

[Ross Paterson]

Sun Aug 22 02:00:22 PDT 2010  Ross Paterson <ross at soi.city.ac.uk>
  * fix extraction of command stack of arguments of arrow "forms" (fixes #4236)
  
  The command stack was being extracted (by unscramble) with the outermost
  type first, contrary to the comment on the function.

    M ./compiler/typecheck/TcArrows.lhs -6 +5

View patch online:
http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=ghc;a=darcs_commitdiff;h=20100822090022-b47d3-fd67dd7c7bd452f7702e54c2eb9fc149d21881e2.gz