Standalone Deriving, GND and roles in 7.8.1-rc2

Sergei Trofimovich slyich at
Wed Mar 5 20:28:55 UTC 2014


Trying to build random packages with fresh ghc-7.8.1-rc2
I've come up with a strange bit:

Is it an intended behaviour that
    deriving instance Parsing IdrisInnerParser
capable of doing more, than
    newtype IdrisInnerParser a = IdrisInnerParser { runInnerParser :: Parser a } deriving (Parsing)



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