RFR: Merge openjdk/jdk:master

[William Kemper]

Merges tag jdk-23+23

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Commit messages:
 - 8302850: Implement C1 clone intrinsic that reuses arraycopy code for primitive arrays
 - 8329839: Cleanup ZPhysicalMemoryBacking trace logging
 - 8332236: javac crashes with module imports and implicitly declared class
 - 8330795: C2: assert((uint)type <= T_CONFLICT && _zero_type[type] != nullptr) failed: bad type with -XX:-UseCompressedClassPointers
 - 8325932: Replace ATTRIBUTE_NORETURN with direct [[noreturn]]
 - 8332248: (fc) java/nio/channels/FileChannel/BlockDeviceSize.java failed with RuntimeException
 - 8322008: Exclude some CDS tests from running with -Xshare:off
 - 8313674: (fc) java/nio/channels/FileChannel/BlockDeviceSize.java should test for more block devices
 - 8332042: Move MEMFLAGS to its own include file
 - 8331858: [nmt] VM.native_memory statistics should work in summary mode
 - ... and 227 more: https://git.openjdk.org/shenandoah/compare/87e864bf...2f10a316

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/shenandoah/pull/435/files
  Stats: 43952 lines in 2060 files changed: 19879 ins; 15301 del; 8772 mod
  Patch: https://git.openjdk.org/shenandoah/pull/435.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah.git pull/435/head:pull/435

PR: https://git.openjdk.org/shenandoah/pull/435