RFR: Merge jdk17

[Jesper Wilhelmsson]

Forwardport JDK 17 -> JDK 18

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Commit messages:
 - Merge
 - 8269722: NPE in HtmlDocletWriter
 - 8270109: ProblemList 4 SA tests on macOS-aarch64
 - 6766844: ByteArrayInputStream#read with a byte array of length 0 not consistent with InputStream when at EOF
 - 8269738: AssertionError when combining pattern matching and function closure
 - 8269828: corrections in some instruction patterns for KNL x86 platform
 - 8268766: Desugaring of pattern matching enum switch should be improved
 - 8270006: Switches with 'case null:' should be exhaustive
 - 8269746: C2: assert(!in->is_CFG()) failed: CFG Node with no controlling input?

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - master: https://webrevs.openjdk.java.net/?repo=jdk&pr=4734&range=00.0
 - jdk17: https://webrevs.openjdk.java.net/?repo=jdk&pr=4734&range=00.1

Changes: https://git.openjdk.java.net/jdk/pull/4734/files
  Stats: 675 lines in 22 files changed: 514 ins; 69 del; 92 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4734.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4734/head:pull/4734

PR: https://git.openjdk.java.net/jdk/pull/4734