don't relatively move FAR_AWAY things away from FAR_AWAY

to avoid the dread 64bit

vcl/source/outdev/map.cxx:391: long int ImplLogicToPixel(long int, long int, long int, long int, long int): Assertion `std::abs(n) < std::numeric_limits<long>::max() / nMapNum / nDPI'

assert on executing...

soffice.bin abi10619-1.doc --convert-to pdf

Change-Id: Id81d8e7eb9a962a5bc7f50d9c02da052cee24da1

sw/source/core/layout/pagechg.cxx

@@ -1815,7 +1815,11 @@ static void lcl_MoveAllLowers( SwFrm* pFrm, const Point& rOffset )
     const SwRect aFrm( pFrm->Frm() );
 
     // first move the current frame
-    pFrm->Frm().Pos() += rOffset;
+    Point &rPoint = pFrm->Frm().Pos();
+    if (rPoint.X() != FAR_AWAY)
+        rPoint.X() += rOffset.X();
+    if (rPoint.Y() != FAR_AWAY)
+        rPoint.Y() += rOffset.Y();
 
     // Don't forget accessibility:
     if( pFrm->IsAccessibleFrm() )