RFR: Merge lworld

[David Simms]

Merge tag 'jdk-16+23'

Merge branch 'lworld' into type-restrictions_merge_lworld_16_23
# Conflicts:
#	src/jdk.compiler/share/classes/com/sun/tools/javac/code/Flags.java

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Commit messages:
 - Merge branch 'lworld' into type-restrictions_merge_lworld_16_23
 - Merge jdk
 - 8255900: x86: Reduce impact when VerifyOops is disabled
 - 8255886: Shenandoah: Resolve cset address truncation and register clash in interpreter LRB
 - 8252870: Finalize (remove "incubator" from) jpackage
 - 8255128: linux x86 build failure with libJNIPoint.c
 - 8255838: Use 32-bit immediate movslq in macro assembler if 64-bit value fits in 32 bits on x86_64
 - 8255863: Clean up test/jdk/java/lang/invoke/defineHiddenClass/BasicTest.java
 - 8255862: Remove @SuppressWarnings from sun.misc.Unsafe
 - 8255855: appcds/jigsaw/NewModuleFinderTest.java test failed due to unexpected NPE
 - ... and 129 more: https://git.openjdk.java.net/valhalla/compare/696076f2...a89530d7

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - type-restrictions: https://webrevs.openjdk.java.net/?repo=valhalla&pr=255&range=00.0
 - lworld: https://webrevs.openjdk.java.net/?repo=valhalla&pr=255&range=00.1

Changes: https://git.openjdk.java.net/valhalla/pull/255/files
  Stats: 15433 lines in 738 files changed: 7531 ins; 5312 del; 2590 mod
  Patch: https://git.openjdk.java.net/valhalla/pull/255.diff
  Fetch: git fetch https://git.openjdk.java.net/valhalla pull/255/head:pull/255

PR: https://git.openjdk.java.net/valhalla/pull/255