RFR: 8312262: Klass::array_klass() should return ArrayKlass pointer [v2]

[Coleen Phillimore]

On Thu, 27 Jul 2023 21:57:15 GMT, Calvin Cheung <ccheung at openjdk.org> wrote:

>> Should you be using release_set_higher_dimension in your change @calvinccheung  ?  It does seem better to not have unsafe alternatives.
>
> Sure, I can use release_set_higher_dimension in my change.

That would be good.  Not this change, but the higher and lower dimensions have to change to not be set inside a Mutex so it'll be safer to only have the acquire/release versions.

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PR Review Comment: https://git.openjdk.org/jdk/pull/15059#discussion_r1276886493