/usr/lib/ghc-doc/hoogle/data-binary-ieee754.txt is in libghc-data-binary-ieee754-doc 0.4.2.1-6.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-data-binary-ieee754-doc/html/data-binary-ieee754.txt