[C2hs] patch applied (c2hs): Simplify Ident representation and construction

[Duncan Coutts]

Fri Jun  1 08:01:55 PDT 2007  Duncan Coutts <duncan.coutts at worc.ox.ac.uk>
  * Simplify Ident representation and construction
  The ambiguousness resolving number was not being utilised at all in c2hs
  so I have removed it. Similarly the parsing of lexemes was unnecessary for
  C identifiers and simplifying it makes the parser >10% faster.
  Also removed all the unused functions (of which there were many).

    M ./base/syms/Idents.hs -238 +18