Optionally show qualifications of identifiers

[anonymous]

Optionally show qualifications of identifiers, that is print "Sequence.map" rather than "map", "Music.T" rather than just "T". The option for haddock could be

    --qualification QUAL
          QUAL=none   (default) strip off qualification (just "map")
          QUAL=orig   show the identifiers as they are written in the module (e.g. "map" or "List.map")
          QUAL=full   show all identifiers with full qualification (Data.List.map)

Actually I tried to implement it by myself in the old Haddock, but I could not precisely identify the place, where the qualification is removed.