C:/lo/gerrit_core/solver/wntmsci13.pro/inc\vcl/lineinfo.hxx(39) : error C2872: 'LineStyle' : ambiguous symbol
    could be 'C:/lo/gerrit_core/solver/wntmsci13.pro/inc\vcl/vclenum.hxx(80) : LineStyle'
    or 'C:/lo/gerrit_core/solver/wntmsci13.pro/inc/offapi om/sun/star/drawing/LineStyle.hdl(13) : com::sun::star::drawing::LineStyle'
...
make[1]: *** [C:/lo/gerrit_core/workdir/wntmsci13.pro/PrecompiledHeader/nodebug/precompiled_sd.hxx.gch] Error 2

WTH do we have 'using namespace' in _new_ code, anyway?

Change-Id: If149653f0a7a4a0061f48e866b30ced120f8bc5e