patch applied (ghc): give the statements under evaluation in the " :show context" output

[Simon Marlow]

Fri Apr 27 08:38:52 PDT 2007  Simon Marlow <simonmar at microsoft.com>
  * give the statements under evaluation in the ":show context" output

    M ./compiler/ghci/GhciMonad.hs -5 +13
    M ./compiler/ghci/InteractiveUI.hs -16 +21