RFR: Merge openjdk/jdk:master [v2]

[William Kemper]

> Merges tag jdk-23+8

William Kemper has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 72 commits:

 - Merge tag 'jdk-23+8' into merge-jdk-23+8
   
   Added tag jdk-23+8 for changeset 5b9b176c
 - 8324174: assert(m->is_entered(current)) failed: invariant
   
   Reviewed-by: epeter, dlong, thartmann
 - 8325042: remove unused JVMDITools test files
   
   Reviewed-by: coleenp
 - 8323621: JDK build should exclude snippet class in java.lang.foreign
   
   Reviewed-by: mcimadamore
 - 8324238: [macOS] java/awt/Frame/ShapeNotSetSometimes/ShapeNotSetSometimes.java fails with the shape has not been applied msg
   
   Reviewed-by: azvegint, dnguyen
 - 8320342: Use PassFailJFrame for TruncatedPopupMenuTest.java
   
   Reviewed-by: honkar, aivanov
 - 8324981: Shenandoah: Move commit and soft max heap changed methods into heap
   
   Reviewed-by: shade
 - 8303374: Implement JEP 455: Primitive Types in Patterns, instanceof, and switch (Preview)
   
   Co-authored-by: Jan Lahoda <jlahoda at openjdk.org>
   Co-authored-by: Maurizio Cimadamore <mcimadamore at openjdk.org>
   Co-authored-by: Gavin Bierman <gbierman at openjdk.org>
   Co-authored-by: Brian Goetz <briangoetz at openjdk.org>
   Co-authored-by: Raffaello Giulietti <rgiulietti at openjdk.org>
   Co-authored-by: Aggelos Biboudis <abimpoudis at openjdk.org>
   Reviewed-by: vromero, jlahoda
 - 8320712: Rewrite BadFactoryTest in pure Java
   
   Reviewed-by: jpai, sundar
 - 8324771: Obsolete RAMFraction related flags
   
   Reviewed-by: dholmes, mbaesken, tschatzl
 - ... and 62 more: https://git.openjdk.org/shenandoah/compare/1ecdc046...b775a88f

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Changes: https://git.openjdk.org/shenandoah/pull/389/files
 Webrev: https://webrevs.openjdk.org/?repo=shenandoah&pr=389&range=01
  Stats: 18823 lines in 1229 files changed: 7186 ins; 1717 del; 9920 mod
  Patch: https://git.openjdk.org/shenandoah/pull/389.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah.git pull/389/head:pull/389

PR: https://git.openjdk.org/shenandoah/pull/389