[vectorIntrinsics] RFR: Merge panama-vector:master

[Paul Sandoz]

Doing another merge to ensue test configuration is up to date, thereby ensuring test infrastructure configuration is in sync.

Merge was clean. Local build and test on mac is also clean.

(Previous attempt selected the wrong base repository!)

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Commit messages:
 - Merge branch 'master' into merge-master-to-vectorIntrinsics
 - 8274509: Remove stray * and stylistic . from doc comments
 - 8274453: (sctp) com/sun/nio/sctp/SctpChannel/CloseDescriptors.java test should be resilient to lsof warnings
 - 8274330: Incorrect encoding of the DistributionPointName object in IssuingDistributionPointExtension
 - 8272562: C2: assert(false) failed: Bad graph detected in build_loop_late
 - 8274340: [BACKOUT] JDK-8271880: Tighten condition for excluding regions from collecting cards with cross-references
 - 8274242: Implement fast-path for ASCII-compatible CharsetEncoders on x86
 - 8271855: [TESTBUG] Wrong weakCompareAndSet assumption in UnsafeIntrinsicsTest
 - 8274130: C2: MulNode::Ideal chained transformations may act on wrong nodes
 - 8274172: Convert JavadocTester to use NIO
 - ... and 78 more: https://git.openjdk.java.net/panama-vector/compare/bfea1ea8...62fbeb1e

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - vectorIntrinsics: https://webrevs.openjdk.java.net/?repo=panama-vector&pr=137&range=00.0
 - panama-vector:master: https://webrevs.openjdk.java.net/?repo=panama-vector&pr=137&range=00.1

Changes: https://git.openjdk.java.net/panama-vector/pull/137/files
  Stats: 8951 lines in 305 files changed: 6222 ins; 1560 del; 1169 mod
  Patch: https://git.openjdk.java.net/panama-vector/pull/137.diff
  Fetch: git fetch https://git.openjdk.java.net/panama-vector pull/137/head:pull/137

PR: https://git.openjdk.java.net/panama-vector/pull/137