RFR: 8299237: add ArraysSupport.newLength test to a test group

[Roger Riggs]

On Thu, 22 Dec 2022 19:49:42 GMT, Stuart Marks <smarks at openjdk.org> wrote:

> Thanks. Do you think I should push this into JDK 20 instead of 21?

Yes, if the test should be run (and has not been running) pushing to 20 will get it running sooner on the release that ships next.

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PR: https://git.openjdk.org/jdk/pull/11769