/usr/lib/hugs/packages/HaXml/programs/ is in libhugs-haxml-bundled 98.200609.21-5.3ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/hugs/packages/HaXml/programs/Canonicalise/
/usr/lib/hugs/packages/HaXml/programs/Canonicalise/Main.hs
/usr/lib/hugs/packages/HaXml/programs/Canonicalise/Paths_HaXml.hs
/usr/lib/hugs/packages/HaXml/programs/CanonicaliseLazy/
/usr/lib/hugs/packages/HaXml/programs/CanonicaliseLazy/Main.hs
/usr/lib/hugs/packages/HaXml/programs/CanonicaliseLazy/Paths_HaXml.hs
/usr/lib/hugs/packages/HaXml/programs/DtdToHaskell/
/usr/lib/hugs/packages/HaXml/programs/DtdToHaskell/Main.hs
/usr/lib/hugs/packages/HaXml/programs/DtdToHaskell/Paths_HaXml.hs
/usr/lib/hugs/packages/HaXml/programs/MkOneOf/
/usr/lib/hugs/packages/HaXml/programs/MkOneOf/Main.hs
/usr/lib/hugs/packages/HaXml/programs/MkOneOf/Paths_HaXml.hs
/usr/lib/hugs/packages/HaXml/programs/Validate/
/usr/lib/hugs/packages/HaXml/programs/Validate/Main.hs
/usr/lib/hugs/packages/HaXml/programs/Validate/Paths_HaXml.hs
/usr/lib/hugs/packages/HaXml/programs/Xtract/
/usr/lib/hugs/packages/HaXml/programs/Xtract/Main.hs
/usr/lib/hugs/packages/HaXml/programs/Xtract/Paths_HaXml.hs
/usr/lib/hugs/packages/HaXml/programs/XtractLazy/
/usr/lib/hugs/packages/HaXml/programs/XtractLazy/Main.hs
/usr/lib/hugs/packages/HaXml/programs/XtractLazy/Paths_HaXml.hs