[SUREFIRE-1887] Trim stacktraces to include relevant lines

[MrFix93]

Following issue SUREFIRE-1887, this PR features an improved version of trimStackTrace.

With this implementation a trimmed stacktrace not only consist of the element(s) in the test class, but extends the stacktrace to include methods calls leading up to the test method.

Before (with trimStackTrace = true):

After (with trimStackTrace = true):

After releasing and collecting feedback, we propose to make trimStackTrace to be enabled by default. This would greatly reduce the stacktraces and thereby the footprint of build output.

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[elharo]

I'm confused. This seems to add an extra line to the output and not remove anything. Is there a test that shows these changes making stack traces simpler?

[elharo]

I don't think this is right. Per docs, trimStackTrace controls "Whether to trim the stack trace in the reports to just the lines within the test, or show the full trace." This PR changes that behavior.

At a minimum the docs need to be updated in the same PR. However SUREFIRE-1887 is about something different, removing the lines from the framework code, not the user's own code. I'm not sure we can change the existing option to make that possible. It might need a new option instead.

[jira-importer]

Resolve #2986