[jdk21u] RFR: 8317336: Assertion error thrown during 'this' escape analysis

[Archie Cobbs]

8317336: Assertion error thrown during 'this' escape analysis

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Commit messages:
 - Backport a8473b70797ef8fa0704774bfadbd84cb33a1d53

Changes: https://git.openjdk.org/jdk21u/pull/252/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21u&pr=252&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8317336
  Stats: 25 lines in 2 files changed: 23 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk21u/pull/252.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u.git pull/252/head:pull/252

PR: https://git.openjdk.org/jdk21u/pull/252