[cvs-nhc98] Minor tidy-ups of the uses of Tree234. (From Thomas Nordi

malcolm: Fri Jun 7 18:27:34 CEST 2002 Update of /usr/src/master/nhc/src/compiler98 In directory hinken:/tmp/cvs-serv5410 Modified Files: AssocTree.hs Case.hs CaseHelp.hs CaseLib.hs DbgDataTrans.hs Depend.hs Derive.hs Export.hs FSLib.hs FixSyntax.hs IExtract.hs Import.hs ImportState.hs Info.hs IntState.hs Main.hs MainNew.hs Memo.hs Need.hs NeedLib.hs Overlap.hs PreImport.hs PrimCode.hs Rename.hs RenameLib.hs ReportImports.hs STGArity.hs Scc.hs TokenInt.hs Type.hs TypeCtx.hs TypeData.hs TypeLib.hs TypeSubst.hs TypeUnify.hs Log Message: Minor tidy-ups of the uses of Tree234. (From Thomas Nordin)