patch applied (ghc-fc2): Make ' iso' special in the parser

[chak at cse.unsw.edu.au]

Wed Aug  2 07:06:30 PDT 2006  Manuel M T Chakravarty <chak at cse.unsw.edu.au>
  * Make 'iso' special in the parser

    M ./compiler/parser/Parser.y.pp +1