machtest seems to be a noop with cmake build

CMakeList.txt in qtbase/tests/auto/corelib/plugin/qpluginloader/machtest looks surprisingly minimalistic, like this:

# Generated from machtest.pro.

Which seems to be wrong, because the original machtest.pro was not empty. CMakeList.txt in the qpluginloader has only this:

if(MACOS AND QT_FEATURE_private_tests AND TARGET Qt::Gui)
    add_subdirectory(machtest)
endif()