RFR: JDK-8316708: Augment WorstCaseTests with more cases

Mon Oct 16 16:17:40 UTC 2023

A new paper

 "Accuracy of Mathematical Functions in Single, Double, Double Extended, and Quadruple Precision"
by Brian Gladman, Vincenzo Innocente and Paul Zimmermann
https://members.loria.fr/PZimmermann/papers/accuracy.pdf

details the inputs with generate the worst-case observed errors in different math library implementations. The FDLIBM-related worst cases should be added to the test suite.

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Commit messages:
 - Fix typo found in code review.
 - Add stated error bounds.
 - JDK-8316708: Augment WorstCaseTests with more cases

Changes: https://git.openjdk.org/jdk/pull/15879/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=15879&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8316708
  Stats: 58 lines in 1 file changed: 57 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/15879.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15879/head:pull/15879

PR: https://git.openjdk.org/jdk/pull/15879