[jdk18u] RFR: 8273115: CountedLoopEndNode::stride_con crash in debug build with -XX:+TraceLoopOpts

[Tobias Hartmann]

Backport of [JDK-8273115](https://bugs.openjdk.java.net/browse/JDK-8273115). Applies cleanly. Approval is pending.

Thanks,
Tobias

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Commit messages:
 - 8273115: CountedLoopEndNode::stride_con crash in debug build with -XX:+TraceLoopOpts

Changes: https://git.openjdk.org/jdk18u/pull/154/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk18u&pr=154&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8273115
  Stats: 64 lines in 2 files changed: 64 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk18u/pull/154.diff
  Fetch: git fetch https://git.openjdk.org/jdk18u pull/154/head:pull/154

PR: https://git.openjdk.org/jdk18u/pull/154