/usr/lib/ghc-doc/hoogle/libghc-binary-orphans-doc.txt is in libghc-binary-orphans-doc 0.1.6.0-2build4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-binary-orphans-doc/html/binary-orphans.txt