/usr/lib/ghc-doc/hoogle/libghc-hint-doc.txt is in libghc-hint-doc 0.4.2.3-3build2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-hint-doc/html/hint.txt