<i18n dev> RFR: 8364365: HKSCS encoder does not properly set the replacement character [v3]

[Volkan Yazici]

On Fri, 8 Aug 2025 11:45:04 GMT, Volkan Yazici <vyazici at openjdk.org> wrote:

>> Fix `HKSCS` encoder to correctly set the replacement character, and add tests to verify the `CodingErrorAction.REPLACE` behavior of all available encoders.
>
> Volkan Yazici has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Improve pretty-printers

Internally verified `tier1,2,3` runs successfully complete.

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PR Comment: https://git.openjdk.org/jdk/pull/26635#issuecomment-3173510451