RFR: JDK-8328272: [AIX] Use flag kind "diagnostic" for platform specific flags [v2]

[Thomas Stuefe]

On Mon, 18 Mar 2024 14:38:54 GMT, Joachim Kern <jkern at openjdk.org> wrote:

>> Current platform implementation (globals_aix.hpp) uses regular product flags for almost everything.
>> Most platform specific flags were never intended for official support. They are only there to diagnose issues and find workarounds.
>> So flag kind "diagnostic" fits better for them.
>
> Joachim Kern has updated the pull request incrementally with one additional commit since the last revision:
> 
>   keep MaxExpectedDataSegmentSize

+1

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Marked as reviewed by stuefe (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/18337#pullrequestreview-1946632976