[cvs-nhc98] Portable tracing: corrected implementation of Ix and simpl

olaf: Thu Mar 14 20:28:12 CET 2002 Update of /usr/src/master/nhc/src/hat/lib In directory hinken:/tmp/cvs-serv29715 Modified Files: ArrayTracing.hs IxTracing.hs Log Message: Portable tracing: corrected implementation of Ix and simplified implementation of Array accordingly. Class Ix has context Ord, although the current version of the Haskell report does not mention it.