patch applied (ghc): Change 'loadWithCompiler' callback argument to just print warnings.

[Thomas Schilling]

Wed Sep 17 03:29:25 PDT 2008  Thomas Schilling <nominolo at googlemail.com>
  * Change 'loadWithCompiler' callback argument to just print warnings.
  Rename function accordingly.
  
  The callback wasn't very flexible to begin with.  There's pretty much
  no way around to calling 'compile' inside that callback since
  'upsweep' depends on certain side effects of compile.  It therefore
  makes more sense to restrict the callback to its intended use only,
  namely to log warnings and errors.

    M ./compiler/main/GHC.hs -47 +32

View patch online:
http://darcs.haskell.org/ghc/_darcs/patches/20080917102925-7c5c6-9cfc27b2abeb31b841f36f57e6a07cf2710b226f.gz