Method moveToThis

unittests/catch.hpp:10250–10252

        m_ctx.setCurrentTracker( m_parent );
    }
    void TrackerBase::moveToThis() {
        m_ctx.setCurrentTracker( this );
    }

    SectionTracker::SectionTracker( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent )
    :   TrackerBase( nameAndLocation, ctx, parent )