patch applied (ghc-6.8/ghc): FIX: Make boxy splitters aware of type families

[Ian Lynagh]

Fri Sep 28 15:55:41 PDT 2007  Manuel M T Chakravarty <chak at cse.unsw.edu.au>
  * FIX: Make boxy splitters aware of type families
  
  MERGE TO STABLE

    M ./compiler/hsSyn/HsPat.lhs -5 +10
    M ./compiler/hsSyn/HsUtils.lhs +5
    M ./compiler/typecheck/TcArrows.lhs -4 +7
    M ./compiler/typecheck/TcExpr.lhs -38 +24
    M ./compiler/typecheck/TcMatches.lhs -8 +12
    M ./compiler/typecheck/TcPat.lhs -28 +31
    M ./compiler/typecheck/TcUnify.lhs -19 +87