No Haddock docs in interfaces included Darwin bindists for 9.2.1 or 9.0.2
-haddock
doesn't seem to be enabled in the darwin bindists distributed on https://downloads.haskell.org/~ghc/9.2.1/
$ ghc-9.2 --show-iface lib/aarch64-osx-ghc-9.2.1/base-4.16.0.0/Data/Bifunctor.hi
...
module header:
Nothing
declaration docs:
arg docs:
extensible fields: