patch applied (ghc): Be a bit more sensible about choosing external OccNames

[Simon Marlow]

Tue Jul 28 03:04:34 PDT 2009  Simon Marlow <marlowsd at gmail.com>
  * Be a bit more sensible about choosing external OccNames
  Ignore-this: 4adcd661e76440deb2b4ab498ebd2d1e
  
  Instead of chr_$wchr, we now just get $wchr.  In general, when an
  OccName is system-generated, we leave it out of the final external
  name, preferring to use the name of the exported parent instead (which
  is necessarily a user-written name).
  
  Names should be no less deterministic, but should be shorter and more
  readable.

    M ./compiler/main/TidyPgm.lhs -6 +19

View patch online:
http://darcs.haskell.org/ghc/_darcs/patches/20090728100434-12142-000cd99d0d7734cf03d8ec4a1c1f12d86cec7e4b.gz