patch applied (ghc-fc2): Type tags in import/export lists

[chak at cse.unsw.edu.au]

Tue Sep 12 13:57:32 PDT 2006  Manuel M T Chakravarty <chak at cse.unsw.edu.au>
  * Type tags in import/export lists
  - To write something like GMapKey(type GMap, empty, lookup, insert)
  - Requires -findexed-types

    M ./compiler/basicTypes/Name.lhs -1 +4
    M ./compiler/parser/Parser.y.pp -4 +12
    M ./compiler/rename/RnNames.lhs -30 +45