Rephrase current_function_test so that boost_test_jamfile picks it up

test/CMakeLists.txt

@@ -3,6 +3,3 @@
 # See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt
 
 boost_test_jamfile(FILE Jamfile.v2 LIBRARIES Boost::assert Boost::core)
-
-# This one doesn't import
-boost_test(TYPE run SOURCES current_function_test.cpp LIBRARIES Boost::assert Boost::core)