esqueleto haddock fails (#4270, haskell/haddock#979)
esqueleto haddock fails (#4270, haskell/haddock#979)

Haddock coverage:
haddock: internal error: internal: extractDecl
CallStack (from HasCallStack):
  error, called at utils/haddock/haddock-api/src/Haddock/Interface/Create.hs:1116:12 in main:Haddock.Interface.Create

fpco/stackage,soenkehahn/stackage,iand675/stackage,michalkonecny/stackage,Daniel-Diaz/stackage,spencerjanssen/stackage,mstksg/stackage,mrkkrp/stackage,stackbuilders/stackage,peti/stackage,simonmichael/stackage,ethercrow/stackage,int-index/stackage,massysett/stackage,athanclark/stackage,clinty/stackage,wereHamster/stackage,asr/stackage,fimad/stackage,jonschoning/stackage