[lworld] RFR: 8294312: [lworld] Add java.util.Objects.isIdentityObject [v4]

[Mandy Chung]

On Fri, 30 Sep 2022 17:15:01 GMT, Roger Riggs <rriggs at openjdk.org> wrote:

>> Add `java.util.Objects.isIdentityObject(obj)` and update tests.
>> 
>> Correct j.l.Class.isIdentity() and .isValue() to correctly identify all arrays as identity objects.
>> (The modifiers for array classes do have not reliable ACC_IDENTITY or ACC_VALUE bits).
>> 
>> Updated ValhallaFeaturesTest to use junit.
>
> Roger Riggs has updated the pull request incrementally with one additional commit since the last revision:
> 
>   javadoc updates in Class for isIdentity and isValue

Looks okay to me.  Thanks for the updates and creating the follow-up issues.

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Marked as reviewed by mchung (Committer).

PR: https://git.openjdk.org/valhalla/pull/770