Panic! the 'impossible' happened: charType: '\167'

Reproduces each time:

Prelude> "\§"
ghc: panic! (the 'impossible' happened)
  (GHC version 6.10.4 for x86_64-unknown-linux):
        charType: '\167'

Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

Edited Mar 09, 2019 by Ian Lynagh -

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Panic! the 'impossible' happened: charType: '\167'