Avoid warnings about not loaded benchmarks depending on the backend when running the `bench` example tests
Avoid warnings about not loaded benchmarks depending on the backend when running the `bench` example tests

LogtalkDotOrg/logtalk3,LogtalkDotOrg/logtalk3,LogtalkDotOrg/logtalk3,LogtalkDotOrg/logtalk3,LogtalkDotOrg/logtalk3,LogtalkDotOrg/logtalk3,LogtalkDotOrg/logtalk3