patch applied (ghc): Don't suggest -fno-monomorphism-restriction if it's already set

[Simon Peyton Jones]

Wed Jun  6 06:34:37 PDT 2007  simonpj at microsoft.com
  * Don't suggest -fno-monomorphism-restriction if it's already set
  
  This patch implements the suggestion in Trac #1398.  It's obviously
  stupid to suggest -fno-monomorphism-restriction if the user is already
  using it.  
  
  (Maybe another suggestion would be good, but this one clearly bogus.)
  

    M ./compiler/typecheck/TcSimplify.lhs -17 +24