RFR: 8338383: Implement JEP 491: Synchronize Virtual Threads without Pinning [v3]

[Patricio Chilano Mateo]

On Wed, 23 Oct 2024 05:56:48 GMT, Axel Boldt-Christmas <aboldtch at openjdk.org> wrote:

>> Also, is it better to have this without assignment.  Which is a nit.
>> Address dst(rthread, JavaThread::held_monitor_count_offset());
>
> The `=` in a variable definition is always construction, never assignment. 
> 
> That said, I also prefer `Address dst(rthread, JavaThread::held_monitor_count_offset());` Less redundant information.

Added comment and fixed dst definition.

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PR Review Comment: https://git.openjdk.org/jdk/pull/21565#discussion_r1813514402