RFR: Merge jdk17

[Jesper Wilhelmsson]

Forwardport JDK 17 -> JDK 18

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Commit messages:
 - Merge
 - 8268826: Cleanup Override in Context-Specific Deserialization Filters
 - 8261147: C2: Node is wrongly marked as reduction resulting in a wrong execution due to wrong vector instructions
 - 8270151: IncompatibleClassChangeError on empty pattern switch statement case
 - 8269146: Missing unreported constraints on pattern and other case label combination
 - 8269952: compiler/vectorapi/VectorCastShape*Test.java tests failed on avx2 machines
 - 8269840: Update Platform.isDefaultCDSArchiveSupported() to return true for aarch64 platforms

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - master: https://webrevs.openjdk.java.net/?repo=jdk&pr=4748&range=00.0
 - jdk17: https://webrevs.openjdk.java.net/?repo=jdk&pr=4748&range=00.1

Changes: https://git.openjdk.java.net/jdk/pull/4748/files
  Stats: 691 lines in 29 files changed: 544 ins; 66 del; 81 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4748.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4748/head:pull/4748

PR: https://git.openjdk.java.net/jdk/pull/4748