[jdk17u-dev] RFR: 8309297: Adjust ShenandoahHeap print_heap_regions_on

[Matthias Baesken]

8309297: Adjust ShenandoahHeap print_heap_regions_on

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Commit messages:
 - Backport 9233dcc8380c6e7cd7bbf7a1f4c0a6873429ea53

Changes: https://git.openjdk.org/jdk17u-dev/pull/1426/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1426&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8309297
  Stats: 10 lines in 2 files changed: 5 ins; 0 del; 5 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1426.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/1426/head:pull/1426

PR: https://git.openjdk.org/jdk17u-dev/pull/1426