Comment #3 on issue 1082 by kimgr: Feature Request: Support for CMake 3.24.0 CMAKE_VERIFY_INTERFACE_HEADER_SETS
https://github.com/include-what-you-use/include-what-you-use/issues/1082
It seems to me like this feature in CMake is orthogonal to IWYU. The recommended way to use IWYU here is to run it on `filename.h` with the appropriate flags to recognize the language (e.g. `-x c++`). I don't think we should code CMake-isms into IWYU.
There is an IWYU mode in CMake, though, I wonder if it would make more sense to teach that to invoke IWYU the right way for header-set-generated `.cxx` files?