patch applied (packages/Cabal): Fix testsuite to use compiler version-specific paths properly

[Duncan Coutts]

Wed Sep  6 08:47:30 PDT 2006  Duncan Coutts <duncan.coutts at worc.ox.ac.uk>
  * Fix testsuite to use compiler version-specific paths properly
  It was using constant strings like "lib/ghc-6.4.1/blah"
  which obviously doesn't work very well with ghc-6.5.20060903
  Also let the test to run be specified on the command line to
  make it easier to re-run individual tests.

    M ./tests/ModuleTest.hs -8 +29