RFR: Merge jdk17

[Jesper Wilhelmsson]

Forwardport JDK 17 -> JDK 18

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Commit messages:
 - Merge
 - 8269768: JFR Terminology Refresh
 - 8269775: compiler/codegen/ClearArrayTest.java failed with "assert(false) failed: bad AD file"
 - 8269543: The warning for System::setSecurityManager should only appear once for each caller
 - 8262017: C2: assert(n != __null) failed: Bad immediate dominator info.
 - 8269771: assert(tmp == _callprojs.fallthrough_catchproj) failed: allocation control projection
 - 8265132: C2 compilation fails with assert "missing precedence edge"

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - master: https://webrevs.openjdk.java.net/?repo=jdk&pr=4673&range=00.0
 - jdk17: https://webrevs.openjdk.java.net/?repo=jdk&pr=4673&range=00.1

Changes: https://git.openjdk.java.net/jdk/pull/4673/files
  Stats: 341 lines in 12 files changed: 266 ins; 34 del; 41 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4673.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4673/head:pull/4673

PR: https://git.openjdk.java.net/jdk/pull/4673