RFR: 8367982: Unify ObjectSynchronizer and LightweightSynchronizer [v3]

[Fredrik Bredberg]

On Mon, 27 Oct 2025 21:48:00 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

>> Would you want me to do that in this PR? Or should I create a new RFE for that, just to acknowledge the fact that one should never say "last" cleanup. :)
>
> I think this should change with this PR.  The big reason synchronizer.inline.hpp was added was to have this inlining based on LockingMode, which we don't need anymore.

Fixed

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PR Review Comment: https://git.openjdk.org/jdk/pull/27915#discussion_r2481618197