[lworld] RFR: 8374554: [lworld] Field layout assert with UseCompactObjectHeaders [v3]

[Coleen Phillimore]

On Wed, 7 Jan 2026 18:26:34 GMT, Frederic Parain <fparain at openjdk.org> wrote:

>> Fix an issue in the logic processing the beginning of a field layout, abstract value class with fields were processing correctly.
>> 
>> Add more configurations to tests in order to cover compact object headers too.
>> Re-enabled some tests that were disabled, an extended them to cover compact object headers too.
>> 
>> Tested with Mach5 tier 1 to 3.
>> 
>> Thank you,
>> 
>> Fred
>
> Frederic Parain has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Fixes from review

Looks good!

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PR Review: https://git.openjdk.org/valhalla/pull/1862#pullrequestreview-3636419438