patch applied (ghc): Improve error message for non-matching file name

[Tim Chevalier]

Sun Apr  6 12:38:21 PDT 2008  Tim Chevalier <chevalier at alum.wellesley.edu>
  * Improve error message for non-matching file name
  
  I changed the "File name does not match module name" error message so
  that it prints out both the declared module name and the expected
  module name (before, it was only printing the declared module name.)

    M ./compiler/main/GHC.hs -2 +3

View patch online:
http://darcs.haskell.org/ghc/_darcs/patches/20080406193821-d61e2-bda002269dec8945465c361bf340a27f5206a062.gz