[HarfBuzz] incorrect glyph positioning in vertical text with MS PMincho font

[Jonathan Kew]

On 13/1/15 18:29, Jonathan Kew wrote:
> On 13/1/15 18:23, Jonathan Kew wrote:
>> Testcase:
>>
>> $ echo 4e10,ff41,ff42,ff43,ff44,ff45,4e11 | hb-unicode-encode | hb-view
>> --font-file msmincho.ttc --face-index 1 --direction ttb
>>
>> results in poor positioning of the (proportionally-spaced) vertical
>> variants of the fullwidth Latin glyphs.
>>
>>
>> JK
>
> Attaching a screenshot comparing Firefox (left, using harfbuzz; hb-view
> result is comparable) and Chrome (right, using ???) renderings of a
> similar testcase.
>
> JK
>

As discussed on irc, this is a problem with the old (WinXP) version of 
MSMincho (v2.31), but does not occur with the current v5.10.

Suggest we ignore the issue, at least for now.

JK