[cvs-nhc98] Eliminate spurious warnings in hat-trans.

[Malcolm Wallace]

malcolm: Mon Feb  4 16:58:54 CET 2002

Update of /usr/src/master/nhc/src/compiler98
In directory hinken:/tmp/cvs-serv7983

Modified Files:
	AuxFile.hs AuxFixity.hs AuxLabelAST.hs 
Log Message:
Eliminate spurious warnings in hat-trans.
  * Previously, the IdentMap (that maps a constructor, field, or method
    to its type or class) was only used on entities defined in this module.
    This led to spurious warnings about some identifiers that were imported
    and re-exported.
  * Now, the IdentMap is always paired up with the AuxTree (mapping
    from Identifier to AuxInfo) to form an 'Environment', so the
    two are always carried together.  Thus, getImports extends the
    IdentMap as well as the AuxTree.  Also, when relabeling the abstract
    syntax tree, we now have correct information about the kind (Var,
    Con, Field, Method) of each entity, rather than a poor approximation.