[lworld] RFR: JDK-8269172: Add java.util.Objects.newIdentity method

[Mandy Chung]

On Tue, 22 Jun 2021 20:14:15 GMT, Roger Riggs <rriggs at openjdk.org> wrote:

> Replaces the existing Objects.newIdentity() method with the matching method in JDK17.

It's fine to bring this in early.  Or it could simply wait until lworld is sync'ed with jdk after JDK-8269096 is integrated and pulled down to the master.

-------------

Marked as reviewed by mchung (Committer).

PR: https://git.openjdk.java.net/valhalla/pull/459