Merge topic 'file-set-repr-improvements' into release-3.23 5fa15ec9f3 Help: Document that target_sources defines [INTERFACE_]HEADER_SETS c5d4812f20 cmTarget: make HEADER_SETS and INTERFACE_HEADER_SETS read-only 05783b168d cmFileSet: store visibility with the fileset Acked-by: Kitware Robot <kwrobot@kitware.com> Merge-request: !7168