[C2hs] patch applied (c2hs): Allow various GNU C builtins that take types as parameters

[Duncan Coutts]

Sun Mar 25 06:00:26 PDT 2007  Duncan Coutts <duncan.coutts at worc.ox.ac.uk>
  * Allow various GNU C builtins that take types as parameters
  We can parse normal builtins, but these ones are not just functions
  since they take types as parameters so have to be recognised specially
  in the parser.
  They are entered into the AST with only a place holder, not the full info.

    M ./c2hs/c/CAST.hs -1 +4
    M ./c2hs/c/CLexer.x +5
    M ./c2hs/c/CParser.y +22
    M ./c2hs/c/CTokens.hs +6