RFR: 8324667: fold Parse::seems_stable_comparison()

[Joshua Cao]

passes GHA

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Commit messages:
 - 8324667: fold Parse::seems_stable_comparison()

Changes: https://git.openjdk.org/jdk/pull/17573/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=17573&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8324667
  Stats: 17 lines in 1 file changed: 1 ins; 15 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/17573.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17573/head:pull/17573

PR: https://git.openjdk.org/jdk/pull/17573