Type: Use `CPP_TEST` instead of `add_plugintest`
-if (ADDTESTING_PHASE)
- add_plugintest (type CPP MEMLEAK LINK_ELEKTRA elektra-kdb elektra-plugin)
-endif (ADDTESTING_PHASE)
-
-add_plugin (type CPP SOURCES type.hpp type.cpp types.hpp types.cpp type_checker.hpp TEST_README)
+add_plugin (type ADD_TEST CPP_TEST CPP SOURCES type.hpp type.cpp types.hpp types.cpp type_checker.hpp TEST_README)
