Method listTestNamesOnly

unittests/catch.hpp:6732–6732

    bool Config::listTests() const          { return m_data.listTests; }
    bool Config::listTestNamesOnly() const  { return m_data.listTestNamesOnly; }
    bool Config::listTags() const           { return m_data.listTags; }
    bool Config::listReporters() const      { return m_data.listReporters; }