patch applied (testsuite): Add test for type refinement with :print in GHCi

[Pepe Iborra]

Sun Feb 18 12:04:26 PST 2007  Pepe Iborra <mnislaih at gmail.com>
  * Add test for type refinement with :print in GHCi

    M ./tests/ghc-regress/ghci.debugger/Test.hs -1 +5
    M ./tests/ghc-regress/ghci.debugger/scripts/all.T +1
    A ./tests/ghc-regress/ghci.debugger/scripts/print018.script
    A ./tests/ghc-regress/ghci.debugger/scripts/print018.stderr
    A ./tests/ghc-regress/ghci.debugger/scripts/print018.stdout