[lworld] RFR: Merge jdk

[David Simms]

Merge jdk-20+13 into lworld

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Commit messages:
 - Merge branch 'lworld' into lworld_merge_jdk_20_12
 - VALUE_CLASS flag as bit 20 (BLOCK)
 - Backed out old fix for 8265973 because the same issue was fixed in mainline with 8290711
 - Fix conflict with javac FROM_SOURCE
 - Merge tag 'jdk-20+13' into lworld_merge_jdk_20_12
 - 8293008: Replace uses of StringBuffer with StringBuilder in MergeCollation
 - 8292681: Add JMH for ProtectionDomain
 - 8293050: RISC-V: Remove redundant non-null assertions about macro-assembler
 - 8290781: Segfault at PhaseIdealLoop::clone_loop_handle_data_uses
 - 8293035: Cleanup MacroAssembler::movoop code patching logic aarch64 riscv
 - ... and 380 more: https://git.openjdk.org/valhalla/compare/2e6c5b64...6c0dc0f8

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - lworld: https://webrevs.openjdk.org/?repo=valhalla&pr=742&range=00.0
 - jdk: https://webrevs.openjdk.org/?repo=valhalla&pr=742&range=00.1

Changes: https://git.openjdk.org/valhalla/pull/742/files
  Stats: 85104 lines in 1729 files changed: 39915 ins; 35696 del; 9493 mod
  Patch: https://git.openjdk.org/valhalla/pull/742.diff
  Fetch: git fetch https://git.openjdk.org/valhalla pull/742/head:pull/742

PR: https://git.openjdk.org/valhalla/pull/742