[jdk23u] RFR: 8342701: [PPC64] TestOSRLotsOfLocals.java crashes

[Martin Doerr]

Clean backport of [JDK-8342701](https://bugs.openjdk.org/browse/JDK-8342701).

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Commit messages:
 - Backport 3bba0f3dc8faf83a3aadcd704ae2ae4967e6daa4

Changes: https://git.openjdk.org/jdk23u/pull/203/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk23u&pr=203&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8342701
  Stats: 19 lines in 1 file changed: 16 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk23u/pull/203.diff
  Fetch: git fetch https://git.openjdk.org/jdk23u.git pull/203/head:pull/203

PR: https://git.openjdk.org/jdk23u/pull/203