RFR: JDK-8327487: Further augment WorstCaseTests with more cases [v3]

[Raffaello Giulietti]

On Mon, 11 Mar 2024 17:17:21 GMT, Joe Darcy <darcy at openjdk.org> wrote:

>> The atan2 and hypot cases added would fail for a particular test library that has errors in the millions of ulps for those inputs, rather than the small number of ulps specified for the error.
>
> Joe Darcy has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Implement review feedback.

Marked as reviewed by rgiulietti (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/18140#pullrequestreview-1930871897