patch applied (ghc): HsSyn clean up for indexed types

Thu Jan  4 17:26:19 PST 2007  Manuel M T Chakravarty <[email protected]>
  * HsSyn clean up for indexed types
  - This patch cleans up the HsSyn representation of type family declarations.
  - The new representation is not only less delicate, it also simplified teh code
    a bit.
  - I took the opportunity of stream lining the terminology and function names
    at the same time.
  - I also updated the description on the wiki at
    <http://hackage.haskell.org/trac/ghc/wiki/TypeFunctionsSyntax>

    M ./compiler/hsSyn/HsDecls.lhs -73 +66
    M ./compiler/main/HscStats.lhs -3 +3
    M ./compiler/parser/Lexer.x -3 +1
    M ./compiler/parser/Parser.y.pp -29 +29
    M ./compiler/parser/RdrHsSyn.lhs -2 +2
    M ./compiler/rename/RnNames.lhs -2 +2
    M ./compiler/rename/RnSource.lhs -65 +38
    M ./compiler/typecheck/TcClassDcl.lhs -8 +8
    M ./compiler/typecheck/TcInstDcls.lhs -5 +4
    M ./compiler/typecheck/TcTyClsDecls.lhs -59 +60