patch applied (ghc): Add ghc and version number in .ident directive in NCG

[Simon Marlow]

Thu Jul  6 04:47:12 PDT 2006  Duncan Coutts <duncan.coutts at worc.ox.ac.uk>
  * Add ghc and version number in .ident directive in NCG
  Just because we can and because every other compiler does,
  lets stick in an identifier directive: .ident "GHC x.y.z"
  into the assembly output of the NCG.

    M ./compiler/nativeGen/AsmCodeGen.lhs +7