RFR: 2321: Prefer pattern matching for instanceof

[Erik Joelsson]

On Mon, 8 Jul 2024 17:04:03 GMT, Pavel Rappo <prappo at openjdk.org> wrote:

> Pattern matching for `instanceof` was introduced in JDK 16, by JEP 394. It's already been used by new code in Skara, but the older code can benefit from it too.

Marked as reviewed by erikj (Lead).

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PR Review: https://git.openjdk.org/skara/pull/1673#pullrequestreview-2165616874