/usr/lib/ghc-doc/hoogle/libghc-tasty-smallcheck-doc.txt is in libghc-tasty-smallcheck-doc 0.8.1-3build7.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-tasty-smallcheck-doc/html/tasty-smallcheck.txt