patch applied (testsuite): augment ghci025 to cover #1847

[Simon Marlow]

Wed Nov  7 17:39:49 PST 2007  claus.reinke at talk21.com
  * augment ghci025 to cover #1847
  
  - need to test :browse! in different contexts
  - -s has disappeared, see #1799 for sorting
  - 'imported from' clarified to 'imported via'
  

    M ./tests/ghc-regress/ghci/scripts/ghci025.script -2 +16
    M ./tests/ghc-regress/ghci/scripts/ghci025.stdout -12 +36