patch applied (ghc): Don't use unnecessary parens when printing types (Fix Trac 4107)

[Simon Peyton Jones]

Fri Jun  4 04:01:43 PDT 2010  simonpj at microsoft.com
  * Don't use unnecessary parens when printing types (Fix Trac 4107)
  
     f :: Eq a => a -> a
  rather than
     f :: (Eq a) => a -> a

    M ./compiler/hsSyn/HsTypes.lhs -2 +10
    M ./compiler/types/TypeRep.lhs -3 +13

View patch online:
http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=ghc;a=darcs_commitdiff;h=20100604110143-1287e-1aff4c038fd3770c68f86c5186a54820fe8687ac.gz