/usr/lib/ghc-doc/hoogle/ieee754.txt is in libghc-ieee754-doc 0.7.3-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-ieee754-doc/html/ieee754.txt
/usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-ieee754-doc/html/ieee754.txt