<i18n dev> RFR: 8268469: Update java.time to use switch expressions [v4]

[Patrick Concannon]

> Hi,
> 
> Could someone please review my code for updating the code in the `java.time` packages to make use of the switch expressions?
> 
> Kind regards,
> Patrick

Patrick Concannon 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 six additional commits since the last revision:

 - 8268469: Removed alignment of arrow operators in some cases; reverted logic of switch/case in LocalDate
 - Merge remote-tracking branch 'origin/master' into JDK-8268469
 - 8268469: Removed excessive spacing; corrected misplaced comments
 - Merge remote-tracking branch 'origin/master' into JDK-8268469
 - Merge remote-tracking branch 'origin/master' into JDK-8268469
 - 8268469: Update java.time to use switch expressions

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/4433/files
  - new: https://git.openjdk.java.net/jdk/pull/4433/files/2ae4a574..24ae9e53

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=4433&range=03
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=4433&range=02-03

  Stats: 24105 lines in 400 files changed: 15347 ins; 7613 del; 1145 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4433.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4433/head:pull/4433

PR: https://git.openjdk.java.net/jdk/pull/4433