patch applied (ghc): change representation of FoundThing

[Simon Marlow]

Sat Sep 16 22:08:00 PDT 2006  Norman Ramsey <nr at eecs.harvard.edu>
  * change representation of FoundThing
  refactored FoundThing to use GHC's native representation of
  source-code locations and to carry the module name so that the TAGS
  file can contain a qualified name as well as the unqualified name

    M ./utils/ghctags/GhcTags.hs -45 +34