RFR: 8356329: Report compact object headers in hs_err [v3]

[Roman Kennke]

> We should report when UseCompactObjectHeaders is enabled in the hs_err file, just like we do for UseCompressedOops or UseCompressedClassPointers, for improved diagnostics.

Roman Kennke has updated the pull request incrementally with one additional commit since the last revision:

  Replace 'compressed class ptrs' with 'compact obj headers' when running with +UCOH

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Changes:
  - all: https://git.openjdk.org/jdk/pull/25080/files
  - new: https://git.openjdk.org/jdk/pull/25080/files/ff2d421f..3252031c

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25080&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25080&range=01-02

  Stats: 45 lines in 3 files changed: 37 ins; 0 del; 8 mod
  Patch: https://git.openjdk.org/jdk/pull/25080.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25080/head:pull/25080

PR: https://git.openjdk.org/jdk/pull/25080