Fix fdo#64685 - Superscript broken in master

After f22006dc the position member of
SwDrawTextInfo is no longer a pointer, so changing the passed Point
after calling SetPos() has no effect, but some code seems to be relying
on it being pointer. Moving SetPos() to after changing the point seems
to do the trick, but there may be other similarly broken code like
SwSubFont::_DrawStretchText() below.

Change-Id: I2f563c1543ff7bff68e573f69fce39694181b370
Reviewed-on: https://gerrit.libreoffice.org/4032Reviewed-by: David Tardon <dtardon@redhat.com>
Tested-by: David Tardon <dtardon@redhat.com>

sw/source/core/txtnode/swfont.cxx

@@ -850,12 +850,12 @@ void SwSubFont::_DrawText( SwDrawTextInfo &rInf, const sal_Bool bGrey )
     SwDigitModeModifier aDigitModeModifier( rInf.GetOut(), rInf.GetFont()->GetLanguage() );
 
     Point aPos( rInf.GetPos() );
-    const Point &rOld = rInf.GetPos();
-    rInf.SetPos( aPos );
 
     if( GetEscapement() )
         CalcEsc( rInf, aPos );
 
+    const Point &rOld = rInf.GetPos();
+    rInf.SetPos( aPos );
     rInf.SetKern( CheckKerning() + rInf.GetSperren() / SPACING_PRECISION_FACTOR );
 
     if( IsCapital() )