[cvs-nhc98] Add the addPreludeTupleInstances() hack, to avoid the expe

malcolm: Thu Aug 23 17:01:28 CEST 2001 Update of /usr/src/master/nhc/src/compiler98 In directory hinken:/tmp/cvs-serv20586 Modified Files: IExtract.hs Log Message: Add the addPreludeTupleInstances() hack, to avoid the expense of reading lots of instance decls from the Prelude interface file. However, turn it off for the moment until I'm sure its safe. Merged from stable-1-06-branch.