I got a ghc "panic" when trying to compile some codewhich made use of .hi-boot files. The exact panicmessage wasghc-6.0.1: panic! (the `impossible' happened, GHCversion 6.0.1): typecheck/TcRnTypes.lhs:233: Missing field inrecord construction TcRnTypes.top_errsThis was on a RedHat 8.0 Linux system,with the following version of ghc:Glasgow Haskell Compiler, Version 6.0.1, for Haskell98, compiled by GHC version 6.0I apologize for the incompleteness of this bug report,but unfortunately the source code which triggered thisbug is proprietary, so I can't include it here. Sorry!