This file is indexed.

/usr/lib/ghc-doc/hoogle/OSM.txt is in libghc-osm-doc 0.6.4-2build3.

This file is owned by root:root, with mode 0o777.

It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-osm-doc/html/OSM.txt