/usr/lib/ghc-doc/hoogle/AMI.txt is in libghc-ami-doc 0.1-3build4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-ami-doc/html/AMI.txt
/usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-ami-doc/html/AMI.txt