RFR: 7904110: IDEA plugin: Update plugin for new message format [v2]

[Jorn Vernee]

On Fri, 31 Oct 2025 19:02:06 GMT, Christian Stein <cstein at openjdk.org> wrote:

> This might be a bit too lenient in some cases, but also supports the new message format.

Yeah, you're right. I've pushed another commit that uses a regex to look for the pattern we are interested in. That should be much more robust.

I also noticed that SKIPPED tests were not being parsed correctly, because they do not have a corresponding `STARTED` message as the parser currently expects. So, I've change the code to expect either:
- a `STARTED` message, in which case we will look for a `SUCCESSFUL` or `FAILED` message, and treat all the lines in between as `stderr` output from the test.
- a `SKIPPED` message, in which case we also look for a 'reason' message on the same line, but after that continue looking for the next test's output.

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PR Comment: https://git.openjdk.org/jtreg/pull/300#issuecomment-3481043250