[lworld] RFR: Merge jdk

[David Simms]

Merge tag 'jdk-18+8'

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Commit messages:
 - Merge tag 'jdk-18+8' into lworld_merge_jdk_18_8
 - 8270086: ARM32-softfp: Do not load CONSTANT_double using the condy helper methods in the interpreter
 - 8270901: Typo PHASE_CPP in CompilerPhaseType
 - 8271368: [BACKOUT] JDK-8266054 VectorAPI rotate operation optimization
 - 8266510: Nimbus JTree default tree cell renderer does not use selected text color
 - 8266054: VectorAPI rotate operation optimization
 - 8271118: C2: StressGCM should have higher priority than frequency-based policy
 - 8271323: [TESTBUG] serviceability/sa/ClhsdbCDSCore.java fails with -XX:TieredStopAtLevel=1
 - 8261236: C2: ClhsdbJstackXcompStress test fails when StressGCM is enabled
 - Merge
 - ... and 97 more: https://git.openjdk.java.net/valhalla/compare/0e3418df...0532293b

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - lworld: https://webrevs.openjdk.java.net/?repo=valhalla&pr=511&range=00.0
 - jdk: https://webrevs.openjdk.java.net/?repo=valhalla&pr=511&range=00.1

Changes: https://git.openjdk.java.net/valhalla/pull/511/files
  Stats: 5740 lines in 226 files changed: 3050 ins; 915 del; 1775 mod
  Patch: https://git.openjdk.java.net/valhalla/pull/511.diff
  Fetch: git fetch https://git.openjdk.java.net/valhalla pull/511/head:pull/511

PR: https://git.openjdk.java.net/valhalla/pull/511