[cvs-nhc98] patch applied (cpphs): Completely refactor the options-processing code.

[Malcolm Wallace]

Mon Jun  4 08:19:21 PDT 2007  Malcolm.Wallace at cs.york.ac.uk
  * Completely refactor the options-processing code.
  Previously scattered over four different modules, with different
  representations and kinds of parsing, it is all now gathered into a
  single place, Language.Preprocessor.Cpphs.Options.

    M ./Language/Preprocessor/Cpphs.hs -2 +4
    M ./Language/Preprocessor/Cpphs/CppIfdef.hs -11 +5
    M ./Language/Preprocessor/Cpphs/MacroPass.hs -8 +6
    M ./Language/Preprocessor/Cpphs/Options.hs -35 +94
    M ./Language/Preprocessor/Cpphs/RunCpphs.hs -22 +12
    M ./cpphs.hs -49 +25