[HarfBuzz] harfbuzz.old applies x advances for rtl in the wrong direction

[Jjgod Jiang]

On Thu, Jan 13, 2011 at 8:45 PM, Khaled Hosny <khaledhosny at eglug.org> wrote:
> See:
> http://www.microsoft.com/typography/otspec/gpos.htm
>
> "X and Y values specified in OpenType fonts for placement operations are
> always within the typical Cartesian coordinate system (origin at the
> baseline of the left side), regardless of the writing direction."

After a second thought, you are right, the xAdvance here has nothing to do
with writing direction. I will get the patch integrated soon.

- Jiang