/usr/lib/ghc-doc/hoogle/libghc-hsx-jmacro-doc.txt is in libghc-hsx-jmacro-doc 7.3.8-3build9.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-hsx-jmacro-doc/html/hsx-jmacro.txt