[lworld] RFR: 8370904: [lworld] Enable CDS heap dumping [v4]

[Coleen Phillimore]

On Wed, 17 Dec 2025 17:19:09 GMT, Matias Saavedra Silva <matsaave at openjdk.org> wrote:

>> CDS heap dumping was manually disabled in lworld due to the method in which the migrated value classes were added to the JDK. Migrated value classes were added through module patching which is incompatible with CDS heap dumping, but now since they are added through jimage, we can re-enable CDS heap dumping and related features that rely on it.
>> 
>> AOT adds some complexity to this as it loads and links classes in VM startup, so alternate code paths need to be considered. Signature calling conventions are stored in adapters which are archived in the AOT code cache, but they aren't usable at runtime, so they need to be regenerated even if we don't regenerate the adapters.
>
> Matias Saavedra Silva has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Un-problem listed test

Looks good! I've been testing with this so have also verified this change.

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Marked as reviewed by coleenp (Committer).

PR Review: https://git.openjdk.org/valhalla/pull/1757#pullrequestreview-3589148825