RFR: 8326369: Bimorphic inlining not applied at a call site that was initially monomorphic

[Galder Zamarreño]

This issue was fixed by JDK-8339299 indirectly (see [PR](https://github.com/openjdk/jdk/pull/20786)), but the PR for 8339299 didn't include any new tests, so I'm sending this PR with the test that Filipp added in 8326369 so that such issue doesn't come back inadvertently. I've added him as co-author and applied some small formatting changes.

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Commit messages:
 - Fix formatting
 - Fix more formatting issues
 - Fix formatting
 - Add test that replicates issue

Changes: https://git.openjdk.org/jdk/pull/21920/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21920&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8326369
  Stats: 90 lines in 1 file changed: 90 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/21920.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21920/head:pull/21920

PR: https://git.openjdk.org/jdk/pull/21920