RFR: 7903384: sync jextract for jdk 20 panama API changes

Mon Dec 12 10:56:12 UTC 2022

On Mon, 5 Dec 2022 16:12:25 GMT, Athijegannathan Sundararajan <sundar at openjdk.org> wrote:

> Synching jextract with jdk 20 Panama API changes JEP 434: Foreign Function & Memory API (Second Preview)

Looks good - as discussed offline, we probably need to update everything to use --release 21, as that's what the panama repo requires.

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Marked as reviewed by mcimadamore (Committer).

PR: https://git.openjdk.org/jextract/pull/94