RFR: 8278874: tighten VerifyStack constraints [v12]

[Dean Long]

On Fri, 15 Aug 2025 06:38:58 GMT, Manuel Hässig <mhaessig at openjdk.org> wrote:

>> Dean Long has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   cleanup
>
> Marked as reviewed by mhaessig (Committer).

Thanks @mhaessig and @tkrodriguez for the reviews.

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PR Comment: https://git.openjdk.org/jdk/pull/26121#issuecomment-3192430004