[C2hs] patch applied (c2hs): Allow all unnamed struct members, not just unamed nested structs

[Duncan Coutts]

Sun Apr 15 00:54:06 PDT 2007  Duncan Coutts <duncan.coutts at worc.ox.ac.uk>
  * Allow all unnamed struct members, not just unamed nested structs
  This does make the grammar too liberal but it's much easier to parse this
  more general grammar than trying to select just the unnamed nested structs.
  Unnamed members other than structs/unions can be checked in the AST later.
  It worked before, but once we introduce GNU C attributes it becomes virtually
  impossible to parse unambigiously.

    M ./c2hs/c/CParser.y -15 +7