[project @ 2001-03-28 11:01:19 by simonmar]
Clean up GHC's error reporting. - the GhcException type has some more constructors: CmdLineError, UserError, and InstallationError. OtherError has gone. - most error messages should begin with "<location>:". When the error is on the command-line or in GHC itself, <location> is "ghc", for consistency with std Unix semantics. - GHCi no longer prints a superfluous "ghc: " before certain error messages.