hptRules crash
I got this blowup from ghc-6.6 (ghc-6.6-2 from Debian unstable on i386).
ghc-6.6: panic! (the 'impossible' happened)
(GHC version 6.6 for i386-unknown-linux):
hptRules
Authorization [(Authorization, False), (BinParse, False),
(BinaryIO, False), (BuildVersion, False), (CFreeVars, False), (CParser, False), (CSyntax, False), (CType, False),
(CVParser, False), (CVParserAssertion, False),
(CVParserCommon, False), (CVParserImperative, False),
(CVParserUtil, False), (CVPrint, False), (Classic, False),
(Error, False), (ErrorUtil, False), (Eval, False),
(FStringCompat, False), (FileIOUtil, False), (FileNameUtil, False),
(Fixity, False), (Flags, False), (Flexlm, False),
(GHCPretty, False), (Hash, False), (IOMutVar, False),
(IOUtil, False), (Id, False), (IdPrint, False), (IntLit, False),
(IntMap, False), (IntegerMisc, False), (IntegerUtil, False),
(Lex, False), (ListSet, False), (ListUtil, False),
(Literal, False), (Log2, False), (NumType, False), (OrdMap, False),
(OrdSet, False), (PFPrint, False), (PPrint, False),
(PVPrint, False), (Parse, False), (Parsec, False),
(ParsecChar, False), (ParsecCombinator, False),
(ParsecExpr, False), (ParsecPrim, False), (Position, False),
(Pragma, False), (PreIds, False), (PreStrings, False),
(Pretty, False), (SEMonad, False), (SchedInfo, False),
(Sort, False), (SpeedyString, False),
(SystemVerilogKeywords, False), (SystemVerilogPreprocess, False),
(SystemVerilogScanner, False), (SystemVerilogTokens, False),
(Trace, False), (Type, False), (Util, False), (VModInfo, False),
(Version, False)]
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug