patch applied (ghc): Use a record instead of a typeclass for 'HsCompiler'. This is mostly

[Thomas Schilling]

Fri Nov 28 04:19:47 PST 2008  Thomas Schilling <nominolo at googlemail.com>
  * Use a record instead of a typeclass for 'HsCompiler'.  This is mostly
  equivalent to a typeclass implementation that uses a functional
  dependency from the target mode to the result type.

    M ./compiler/main/HscMain.lhs -121 +130

View patch online:
http://darcs.haskell.org/ghc/_darcs/patches/20081128121947-7c5c6-bd8f70c50b82a8689675bc5ae385ee4b1ae53881.gz