/usr/include/cutl/compiler/ is in libcutl-dev 1.10.0+ds1-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/cutl/compiler/code-stream.hxx
/usr/include/cutl/compiler/code-stream.txx
/usr/include/cutl/compiler/context.hxx
/usr/include/cutl/compiler/context.txx
/usr/include/cutl/compiler/cxx-indenter.hxx
/usr/include/cutl/compiler/cxx-indenter.ixx
/usr/include/cutl/compiler/cxx-indenter.txx
/usr/include/cutl/compiler/sloc-counter.hxx
/usr/include/cutl/compiler/sloc-counter.txx
/usr/include/cutl/compiler/traversal.hxx
/usr/include/cutl/compiler/traversal.txx
/usr/include/cutl/compiler/type-id.hxx
/usr/include/cutl/compiler/type-id.ixx
/usr/include/cutl/compiler/type-id.txx
/usr/include/cutl/compiler/type-info.hxx
/usr/include/cutl/compiler/type-info.ixx