cppcheck: fix Prefer prefix ++/-- operators for non-primitive types

Change-Id: I7495f86cb35b6f712cfb7d603f022f6f6c407266

svtools/source/control/ruler.cxx

@@ -2849,7 +2849,7 @@ void Ruler::SetTabs( sal_uInt32 aTabArraySize, const RulerTab* pTabArray )
                 {
                     break;
                 }
-                aTabIterator++;
+                ++aTabIterator;
                 pInputArray++;
                 i--;
             }

vcl/coretext/salgdi2.cxx

@@ -881,7 +881,7 @@ bool SvpSalGraphics::CheckContext()
 
         CGContextBeginPath( mrContext );
 
-        for(RectangleVector::const_iterator aRectIter(aRectangles.begin()); aRectIter != aRectangles.end(); aRectIter++)
+        for(RectangleVector::const_iterator aRectIter(aRectangles.begin()); aRectIter != aRectangles.end(); ++aRectIter)
         {
             const long nW(aRectIter->Right() - aRectIter->Left() + 1); // uses +1 logic in original