<i18n dev> RFR: 8268124: Update java.lang to use switch expressions [v6]

[Patrick Concannon]

> Hi,
> 
> Could someone please review my code for updating the code in the `java.lang` 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 seven additional commits since the last revision:

 - Merge remote-tracking branch 'origin/master' into JDK-8268124
 - 8268124: moved cases into separate lines in DirectMethodHandleDescImpl part II
 - 8268124: moved cases onto separate lines in DirectMethodHandleDescImpl
 - Merge remote-tracking branch 'origin/master' into JDK-8268124
 - 8268124: small refactoring; fixed misplaced comment and added missing lambda operator
 - Merge remote-tracking branch 'origin/master' into JDK-8268124
 - 8268124: Update java.lang to use switch expressions

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/4312/files
  - new: https://git.openjdk.java.net/jdk/pull/4312/files/df5b34e5..c7c11939

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=4312&range=05
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=4312&range=04-05

  Stats: 4673 lines in 106 files changed: 3649 ins; 412 del; 612 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4312.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4312/head:pull/4312

PR: https://git.openjdk.java.net/jdk/pull/4312