RFR: 8343829: Unify decimal and hexadecimal parsing in FloatingDecimal [v7]

[Raffaello Giulietti]

> See the JBS bug for some details.

Raffaello Giulietti has updated the pull request incrementally with one additional commit since the last revision:

  Make some static arrays @Stable.

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Changes:
  - all: https://git.openjdk.org/jdk/pull/22737/files
  - new: https://git.openjdk.org/jdk/pull/22737/files/49ed9aac..41d070ec

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=22737&range=06
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=22737&range=05-06

  Stats: 13 lines in 1 file changed: 10 ins; 2 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/22737.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22737/head:pull/22737

PR: https://git.openjdk.org/jdk/pull/22737