[C2hs] patch applied (c2hs): Allow GNU C __label__ things in compound statements

[Duncan Coutts]

Sun Mar 25 05:56:37 PDT 2007  Duncan Coutts <duncan.coutts at worc.ox.ac.uk>
  * Allow GNU C __label__ things in compound statements
  I'm not quite sure what they mean, they're recognised but ignored
  ie not included in the AST.

    M ./c2hs/c/CLexer.x +1
    M ./c2hs/c/CParser.y +13
    M ./c2hs/c/CTokens.hs +3