darcs patch: Fix warnings (part 2)

[Twan van Laarhoven]

Hi,

Here are some more warnings fixing patches.

I also did some minor cleanup and 'monadification' of parser/RdrHsSyn.

Fixing all the warnings in the parser and lexer is not possible, because alex 
and happy get in the way. Perhaps they sould be fixed to produce warning free code.

Twan

-------------- next part --------------
A non-text attachment was scrubbed...
Name: warnings3.patch.gz
Type: application/x-gzip
Size: 37426 bytes
Desc: not available
Url : http://www.haskell.org/pipermail/cvs-ghc/attachments/20080204/3e6ed270/warnings3.patch-0001.bin