RFR: 8359107: [leyden] Pick up JDK-8357481, JDK-8357473 and rework precompilation waits

[Vladimir Kozlov]

On Tue, 10 Jun 2025 10:09:25 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> [JDK-8357481](https://bugs.openjdk.org/browse/JDK-8357481) will come in from mainline and bring conflicting changes to `CompileTask`. Additionally, our precompilation ([JDK-8352042](https://bugs.openjdk.org/browse/JDK-8352042)) depends on the code that would go away with [JDK-8357473](https://bugs.openjdk.org/browse/JDK-8357473). We should cherry-pick [JDK-8357481](https://bugs.openjdk.org/browse/JDK-8357481), [JDK-8357473](https://bugs.openjdk.org/browse/JDK-8357473) and rework parallel recompilation to use the newly created `CompileTaskWait_lock` for notifications.
> 
> Additional testing:
>  - [x] Ad-hoc performance tests
>  - [x] Linux x86_64 server fastdebug, `runtime/cds`

My testing passed. Good.

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Marked as reviewed by kvn (Committer).

PR Review: https://git.openjdk.org/leyden/pull/79#pullrequestreview-2937175622