<i18n dev> RFR: 8279185: Support for IsoFields in JapaneseDate/MinguoDate/ThaiBuddhistDate [v4]

[Naoto Sato]

> Supporting `IsoFields` temporal fields in chronologies that are similar to ISO chronology. Corresponding CSR has also been drafted.

Naoto Sato 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 five additional commits since the last revision:

 - Renamed the new method
 - Merge branch 'master' into JDK-8279185
 - Addresses review comments
 - copyright year fix
 - 8279185: Support for IsoFields in JapaneseDate/MinguoDate/ThaiBuddhistDate

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/7683/files
  - new: https://git.openjdk.java.net/jdk/pull/7683/files/e0b329d7..530ed40e

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=7683&range=03
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=7683&range=02-03

  Stats: 12800 lines in 349 files changed: 8488 ins; 2645 del; 1667 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7683.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7683/head:pull/7683

PR: https://git.openjdk.java.net/jdk/pull/7683