RFR: 8342775: [Graal] java/util/concurrent/locks/Lock/OOMEInAQS.java fails OOME thrown from the UncaughtExceptionHandler

[Tom Rodriguez]

Deoptimization with escape analysis can fail when trying to rematerialize objects as described in JDK-8227309.  In this test this can happen in Xcomp mode in the framework of the test resulting in a test failure.  Making the number of threads non-final avoids scalar replacement and thus the OOM during deopt.

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Commit messages:
 - 8342775: [Graal] java/util/concurrent/locks/Lock/OOMEInAQS.java fails OOME thrown from the UncaughtExceptionHandler

Changes: https://git.openjdk.org/jdk/pull/21745/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21745&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8342775
  Stats: 3 lines in 1 file changed: 2 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/21745.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21745/head:pull/21745

PR: https://git.openjdk.org/jdk/pull/21745