patch applied (ghc-fc2): Kind sig for toplevel family decls is optional

[chak at cse.unsw.edu.au]

Sat Aug 26 16:03:50 PDT 2006  Manuel M T Chakravarty <chak at cse.unsw.edu.au>
  * Kind sig for toplevel family decls is optional
  - Kind sigs are still compulsory for AT family decls.  Changing this is more 
    tricky, as AT decls don't have the family keyword and hence look like empty 
    data decls.  That impacts reduce/reduce conflicts and/or the criteria for 
    checking whether a TyData variant is a family signature.
  - Also removed iso from the syntax (it's still in the lexer in case we want to
    resurrect it). 

    M ./compiler/parser/Parser.y.pp -24 +31