patch applied (ghc-fc2): fix some coercion kind representation things, extend exprIsConApp_maybe to non-vanilla

[chak at cse.unsw.edu.au]

Sat Aug  5 18:48:21 PDT 2006  Manuel M T Chakravarty <chak at cse.unsw.edu.au>
  * fix some coercion kind representation things, extend exprIsConApp_maybe to non-vanilla
  Wed Jul 19 08:06:28 EDT 2006  kevind at bu.edu

    M ./compiler/Makefile -1 +1
    M ./compiler/basicTypes/MkId.lhs -1 +1
    M ./compiler/basicTypes/Var.lhs -3 +12
    M ./compiler/coreSyn/CoreUtils.lhs -12 +45
    M ./compiler/deSugar/DsCCall.lhs -3 +3
    M ./compiler/simplCore/Simplify.lhs -1 +1
    M ./compiler/stranal/WwLib.lhs -2 +2
    M ./compiler/typecheck/TcExpr.lhs -1 +1
    M ./compiler/typecheck/TcType.lhs -2 +6
    M ./compiler/types/Type.lhs -4 +14