Recent master fails to build attoparsec-0.13.0.1 with core lint failure

You might also like to see #11664 (closed) for some history.

I have tried using current master 57b4c552 to build current attoparsec-0.13.0.1 on Ubuntu Linux 15.10 x86_64. The build fails with Core Lint error

<no location info>: warning:
    In the type ‘Buffer
                 -> Pos -> More -> a_aOwS -> IResult Text r_aOwT’
    @ a_aOwS is out of scope

Attached comes full output of cabal install attoparsec --with-ghc=<path-to-ghc> --verbose --ghc-options -dcore-lint. The output is huge (57k lines) so I gzipped it.

Trac metadata

Trac field	Value
Version	8.1
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
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