RFR: Export JavaThread::_lock_id, ObjectMonitor::_stack_locker and markWord::marked_value.

[Yudi Zheng]

On Mon, 22 Jul 2024 16:00:00 GMT, Yudi Zheng <yzheng at openjdk.org> wrote:

> Essential exports for implementing fibers support in Graal.

Thanks for the review!

-------------

PR Comment: https://git.openjdk.org/loom/pull/211#issuecomment-2247436057