RFR: JDK-8327444: simplify RESTARTABLE macro usage in JDK codebase [v4]

[David Holmes]

On Thu, 7 Mar 2024 08:16:26 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

>> We define the RESTARTABLE macro again and again at a lot of places in the JDK native codebase. This could be centralized to avoid repeating it again and again !
>
> Matthias Baesken has updated the pull request incrementally with one additional commit since the last revision:
> 
>   adjust COPYRIGHT year info

LGTM. Thanks

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Marked as reviewed by dholmes (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/18132#pullrequestreview-1922263102