Panic: the impossible happened charType '\955'
GHCi 7.0.3 panic on loading file with multiline strings and Unicode characters:
dpm@dpm-laptop:~/Projects/PL/pl/pl2$ ghci Debug/GHCCrash.hs GHCi, version 7.0.3: http://www.haskell.org/ghc/ :? for help Loading package ghc-prim ... linking ... done. Loading package integer-gmp ... linking ... done. Loading package base ... linking ... done. Loading package ffi-1.0 ... linking ... done. ghc: panic! (the 'impossible' happened) (GHC version 7.0.3 for i386-unknown-linux): charType: '\955' Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
Minimum file necessary to reproduce attached.