patch applied (ghc): Fix Trac #3092

[Simon Peyton Jones]

Mon Mar 16 09:40:49 PDT 2009  simonpj at microsoft.com
  * Fix Trac #3092
  Ignore-this: 9502fdd84b7b1849f6c37afe12d46d64
  
  We were't checking that a 'data/type instance' was extending a family
  type constructor.
  
  Merge to 6.10 if we ever release 6.10.3 (or do it for 6.10.2).
  
  

    M ./compiler/typecheck/TcTyClsDecls.lhs -9 +14

View patch online:
http://darcs.haskell.org/ghc/_darcs/patches/20090316164049-1287e-69e71cc3b01079a6246bd1ba492a5df1bbf87620.gz