RFR: 8359424: Eliminate table lookup in Integer/Long toHexString [v3]

[Shaojin Wen]

> In PR #22928, UUID introduced long-based vectorized hexadecimal to string conversion, which can also be used in Integer::toHexString and Long::toHexString to eliminate table lookups. The benefit of eliminating table lookups is that the performance is better when cache misses occur.

Shaojin Wen has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 21 commits:

 - Merge branch 'master' into optim_to_hex_202501
 - Update src/java.base/share/classes/java/util/UUID.java
   
   Co-authored-by: ExE Boss <3889017+ExE-Boss at users.noreply.github.com>
 - Merge remote-tracking branch 'upstream/master' into optim_to_hex_202501
 - use right shift
 - use right shift
 - fix benchmark
 - Merge remote-tracking branch 'upstream/master' into optim_to_hex_202501
 - Merge remote-tracking branch 'upstream/master' into optim_to_hex_202501
   
   # Conflicts:
   #	src/java.base/share/classes/jdk/internal/util/HexDigits.java
 - Merge remote-tracking branch 'upstream/master' into optim_to_hex_202501
 - reverseBytes
 - ... and 11 more: https://git.openjdk.org/jdk/compare/5f083aba...d2d9e556

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Changes: https://git.openjdk.org/jdk/pull/22942/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22942&range=02
  Stats: 262 lines in 6 files changed: 177 ins; 77 del; 8 mod
  Patch: https://git.openjdk.org/jdk/pull/22942.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22942/head:pull/22942

PR: https://git.openjdk.org/jdk/pull/22942