GHC Panic "reifyType PredTy" in HAppS.Data.IxSet.inferIxSet
Exception when trying to run compile-time code:
ghc: panic! (the 'impossible' happened)
(GHC version 6.10.1 for x86_64-unknown-linux):
reifyType PredTy
Code reproducing this bug can be found at: http://hpaste.org/fastcgi/hpaste.fcgi/view?id=2419
Marked as critical because I haven't found a workaround yet.