patch applied (ghc): add debugging code and comments

[Simon Marlow]

Fri Feb  6 05:06:09 PST 2009  Simon Marlow <marlowsd at gmail.com>
  * add debugging code and comments
  Ignore-this: 5f0e1e3fa0148da079f13eb07430c09b

    M ./rts/parallel/WSDeque.c -2 +15

View patch online:
http://darcs.haskell.org/ghc/_darcs/patches/20090206130609-12142-3bb7afe06366b5d4b3dacfc27ca5644977160df4.gz