[XeTeX] CID-keyed font support?

[Akira Kakuto]

Dear Jiang Jiang ,

> I will take a look at the warnings for non-CJK fonts.

Thanks.
In addition, I think it is necessary to refine for dvipdfmx.
The patched sources do not compile as "dvipdfmx".
My friend says that the present dvipdfmx can handle
Source Han Sans JP by translating the CMap
UniSourceHanSansJP-UTF32-H  into UniSourceHanSansJP-UTF16-H.

Best,
Akira