[lworld] RFR: 8294312: [lworld] Add java.util.Objects.isIdentityObject [v2]

[Mandy Chung]

On Thu, 29 Sep 2022 21:21:21 GMT, Roger Riggs <rriggs at openjdk.org> wrote:

> Joe provided tests for Array classes (in ClassAccessFlagTest).
> It looks like he assumed other bits in the modifiers were zero.
> There is no spec for other bits. (they are unspecified)

Can you add a valhalla-specific test to validate that `Class::accessFlags` returns the expected flags for identity, value, array classes, and interface, etc.

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