[jdk20] RFR: 8299237: add ArraysSupport.newLength test to a test group

[Naoto Sato]

On Thu, 22 Dec 2022 21:25:39 GMT, Stuart Marks <smarks at openjdk.org> wrote:

> It was running as part of tier4 (which is kind of a catch-all tier) but since it's (an internal) part of java.util, it should really be in tier1. This adds the test/jdk/jdk/internal/util directory to the :jdk_util_other test group.

Marked as reviewed by naoto (Reviewer).

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PR: https://git.openjdk.org/jdk20/pull/73