<i18n dev> RFR: 8337279: Optimize format instant [v2]

[Andriy Plokhotnyuk]

On Fri, 26 Jul 2024 15:44:59 GMT, Shaojin Wen <duke at openjdk.org> wrote:

>> By removing the redundant code logic in DateTimeFormatterBuilder$InstantPrinterParser#formatTo, the codeSize can be reduced and the performance can be improved.
>
> Shaojin Wen has updated the pull request incrementally with one additional commit since the last revision:
> 
>   add comment

@jodastephen @wenshao Could you please review [these](https://github.com/openjdk/jdk/pull/11986) proposed changes for instantiation of `Instant` values with already normalized nanos?

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PR Comment: https://git.openjdk.org/jdk/pull/20353#issuecomment-2253044743