RFR: Merge openjdk/jdk:master [v2]

[William Kemper]

> Merge tag jdk-20+25

William Kemper has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 185 commits:

 - Merge tag 'jdk-20+25' into merge-jdk-20-25
   
   Added tag jdk-20+25 for changeset 09ac9eb5
 - Various build fixes
   
   Reviewed-by: kdnilsen
 - Load balance remset scan
   
   Reviewed-by: wkemper
 - Do not apply evacuation budgets in non-generational mode
   
   Reviewed-by: kdnilsen
 - Merge openjdk/jdk:master
 - Change affiliation representation
   
   Reviewed-by: ysr, wkemper
 - Improve some defaults and remove unused options for generational mode
   
   Reviewed-by: rkennke
 - Merge openjdk/jdk:master
   
   Reviewed-by: rkennke
 - Improve evacuation instrumentation
   
   Reviewed-by: kdnilsen
 - Fix preemption of coalesce and fill
   
   Reviewed-by: wkemper
 - ... and 175 more: https://git.openjdk.org/shenandoah/compare/09ac9eb5...a1efb66c

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

Changes: https://git.openjdk.org/shenandoah/pull/175/files
 Webrev: https://webrevs.openjdk.org/?repo=shenandoah&pr=175&range=01
  Stats: 15009 lines in 148 files changed: 13749 ins; 507 del; 753 mod
  Patch: https://git.openjdk.org/shenandoah/pull/175.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah pull/175/head:pull/175

PR: https://git.openjdk.org/shenandoah/pull/175