[jdk21u] RFR: 8316581: Improve performance of Symbol::print_value_on()

[Aleksey Shipilev]

Clean backport to improve class unloading performance.

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Commit messages:
 - Backport 90bcdbd15fe7211377f6f6812a2b562c17995d65

Changes: https://git.openjdk.org/jdk21u/pull/394/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21u&pr=394&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8316581
  Stats: 6 lines in 1 file changed: 0 ins; 3 del; 3 mod
  Patch: https://git.openjdk.org/jdk21u/pull/394.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u.git pull/394/head:pull/394

PR: https://git.openjdk.org/jdk21u/pull/394