[lworld] RFR: Merge jdk [v3]

[David Simms]

> Merge tag 'jdk-26+13' into lworld_merge_jdk_26_13
> Added tag jdk-26+13 for changeset 1d53ac30

David Simms has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 77 commits:

 - Merge branch 'lworld' into lworld_merge_jdk_26_13
 - Merge branch 'lworld' into lworld_merge_jdk_26_13
 - Merge tag 'jdk-26+13' into lworld_merge_jdk_26_13
   
   Added tag jdk-26+13 for changeset 1d53ac30
 - 8366028: MethodType::fromMethodDescriptorString should not throw UnsupportedOperationException for invalid descriptors
   
   Reviewed-by: jvernee
 - 8359348: G1: Improve cpu usage measurements for heap sizing
   
   Reviewed-by: tschatzl, ayang, manc
 - 8365772: RISC-V: correctly prereserve NaN payload when converting from float to float16 in vector way
   
   Reviewed-by: fyang, rehn
 - 8365203: defineClass with direct buffer can cause use-after-free
   
   Reviewed-by: jpai
 - 8365919: Replace currentTimeMillis with nanoTime in Stresser.java
   
   Reviewed-by: tschatzl, phh
 - 8359683: ZGC: NUMA-Aware Relocation
   
   Reviewed-by: aboldtch, sjohanss
 - 8365256: RelocIterator should use indexes instead of pointers
   
   Reviewed-by: kvn, dlong
 - ... and 67 more: https://git.openjdk.org/valhalla/compare/f8ced6c2...8f92505c

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

Changes: https://git.openjdk.org/valhalla/pull/1653/files
  Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=1653&range=02
  Stats: 8018 lines in 248 files changed: 5218 ins; 1812 del; 988 mod
  Patch: https://git.openjdk.org/valhalla/pull/1653.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1653/head:pull/1653

PR: https://git.openjdk.org/valhalla/pull/1653