[XeTeX] optical sizes?

[Bruce D'Arcus]

Argh ... sorry for the noise.  Here's an example:

\test{Warnock Pro Display:+onum}
\test{Warnock Pro:language=TUR}
\test{Warnock Pro Caption:-liga}
\test{Warnock Pro Caption:+smcp}
\test{Warnock Pro Subhead:+c2sc,+smcp}
\test{Warnock Pro Display:+lnum}
\test{Warnock Pro Display:+titl}