RFR: Merge openjdk/jdk:master

Tue Aug 2 17:27:59 UTC 2022

On Mon, 1 Aug 2022 23:44:52 GMT, William Kemper <wkemper at openjdk.org> wrote:

> This pulls in the latest upstream commits from tip. There was a [small change](https://github.com/openjdk/shenandoah/pull/154/commits/f7a1353f7bff269f8bd2750bc60af85fb04f4eed) to handle notifications of mark start and mark end to make Loom aware of old generation marking.

Marked as reviewed by rkennke (Lead).

Looks good. Thank you!

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PR: https://git.openjdk.org/shenandoah/pull/154