RFR: JDK-8215210: [macos] Hangul text does not shape to the precomposed form on JDK8u

[Simon Tooke]

(disclaimer: I am not a reviewer)

I did test Yuri's fix on macOS Catalina 10.5.1 / XCode 11.2.1, and it 
did fix the issue (which I reproduced) and the two included regressions 
tests passed.  The patch applied cleanly on 8u242-b01.

I have not yet run the full regression suite, so I don't know if there 
are any regressions.

-Simon


On 2019-10-07 8:25 a.m., Yuri Nesterenko wrote:
> Hi all,
>
> could you please review this downport of
> https://bugs.openjdk.java.net/browse/JDK-8215210 to openjdk 8u?
>
> Link to webrev: http://cr.openjdk.java.net/~yan/8215210/webrev.0/
>
> There is a single digit change discovered by prr and a couple of
> regression tests:
>
> one verifies that required shaping works as expected and another -- that
> there's no obvious regression for JDK-8201801
> <https://bugs.openjdk.java.net/browse/JDK-8201801>
>
> Thank you!
>
> --yan
>
>
>