patch applied (ghc-6.8/ghc): Fix Trac 1865: GHCi debugger crashes with :print

[Ian Lynagh]

Tue Nov 13 09:01:13 PST 2007  Pepe Iborra <mnislaih at gmail.com>
  * Fix Trac 1865: GHCi debugger crashes with :print

    M ./compiler/ghci/Debugger.hs -1 +1
    M ./compiler/ghci/RtClosureInspect.hs -7 +11
    M ./compiler/main/InteractiveEval.hs -1 +1
    M ./compiler/types/Type.lhs -11 +13