Hi Richard, along with this or some other change it seems you broke the test suite when run with DEBUG:
T2478.hs:1:41: warning:
-XDatatypeContexts is deprecated: It was widely considered a misfeature,
and has been removed from the Haskell language.
ghc-stage2: panic! (the 'impossible' happened)
(GHC version 8.1.20160321 for x86_64-unknown-linux):
ASSERT failed!
CallStack (from HasCallStack):
assertPprPanic, called at compiler/typecheck/TcType.hs:931:47 in ghc:TcType
t_ap0
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
*** unexpected failure for T2478(normal)
at least according to travis:
https://s3.amazonaws.com/archive.travis-ci.org/jobs/117548750/log.txt
Greetings,
Joachim
--
Joachim “nomeata” Breitner
[email protected] • https://www.joachim-breitner.de/
XMPP: [email protected] • OpenPGP-Key: 0xF0FBF51F
Debian Developer: [email protected]
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