[jdk20u] RFR: 8300590: [JVMCI] BytecodeFrame.equals is broken

[Tobias Hartmann]

Backport of [JDK-8300590](https://bugs.openjdk.java.net/browse/JDK-8300590). Applies cleanly. Approval is pending.

Thanks,
Tobias

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Commit messages:
 - 8300590: [JVMCI] BytecodeFrame.equals is broken

Changes: https://git.openjdk.org/jdk20u/pull/33/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk20u&pr=33&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8300590
  Stats: 145 lines in 2 files changed: 129 ins; 8 del; 8 mod
  Patch: https://git.openjdk.org/jdk20u/pull/33.diff
  Fetch: git fetch https://git.openjdk.org/jdk20u.git pull/33/head:pull/33

PR: https://git.openjdk.org/jdk20u/pull/33