RFR: 8357689: Refactor JVMCI to enable replay compilation in Graal

Mon Jul 7 13:07:55 UTC 2025

This PR introduces a few minor JVMCI refactorings to make replay compilation possible in the Graal compiler.

-------------

Commit messages:
 - Remove an unused import.
 - Use a pattern variable.
 - use list when applicable
 - JVMCI refactorings to enable replay compilation in Graal.

Changes: https://git.openjdk.org/jdk/pull/25433/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25433&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8357689
  Stats: 434 lines in 21 files changed: 310 ins; 8 del; 116 mod
  Patch: https://git.openjdk.org/jdk/pull/25433.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25433/head:pull/25433

PR: https://git.openjdk.org/jdk/pull/25433