RFR: JDK-8316708: Augment WorstCaseTests with more cases [v9]

[Joe Darcy]

> 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.

Joe Darcy has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains 18 additional commits since the last revision:

 - Respond to review feedback and fix typos.
 - Merge branch 'master' into JDK-8316708
 - Respond to review feedback, adjust worst-case bounds.
 - Appease jcheck.
 - Update atan2 and hypot tests.
 - Expand fingerprinting to more StrictMath tests.
 - Fix missing minus sign.
 - Checkpoint.
 - Checkpoint StrictMath test for trig, inverse trig, and hyperbolic trig fingerprint values.
 - Add cos test cases.
 - ... and 8 more: https://git.openjdk.org/jdk/compare/fd67967c...e705e10a

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/15879/files
  - new: https://git.openjdk.org/jdk/pull/15879/files/98c8e69f..e705e10a

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=15879&range=08
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=15879&range=07-08

  Stats: 6391 lines in 800 files changed: 3300 ins; 1492 del; 1599 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