RFR: 8313621: test/jdk/jdk/internal/math/FloatingDecimal/TestFloatingDecimal should use RandomFactory [v3]

[Raffaello Giulietti]

On Mon, 30 Oct 2023 17:55:47 GMT, Brian Burkhalter <bpb at openjdk.org> wrote:

>> Change test to use `RandomFactory` instead of `new Random()` and convert it to JUnit 5.
>
> Brian Burkhalter has updated the pull request incrementally with one additional commit since the last revision:
> 
>   8313621: Initialize NUM_RANDOM_TESTS more clearly

Marked as reviewed by rgiulietti (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/16130#pullrequestreview-1704772673