<i18n dev> RFR: 8343236: Use @apiNote and @implSpec in j.util.Currency [v2]

[Justin Lu]

> Please review this PR which aims to improve the _j.util.Currency_ specification by using `@apiNote` and `@implSpec`.
> 
> A corresponding CSR has been filed.

Justin Lu has updated the pull request incrementally with one additional commit since the last revision:

  CSR review: implNote -> implSpec

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/21793/files
  - new: https://git.openjdk.org/jdk/pull/21793/files/b905a58c..241397b4

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=21793&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=21793&range=00-01

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/21793.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21793/head:pull/21793

PR: https://git.openjdk.org/jdk/pull/21793