RFR: 7903981: Support easy way to use current class name for test actions [v2]

[Christian Stein]

On Fri, 4 Apr 2025 18:28:13 GMT, Roger Riggs <rriggs at openjdk.org> wrote:

>> Christian Stein has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Clean up
>
> Something in the PR topic should describe the change being proposed. (Something about smart tags and whatever...)
> The edit to the tag-spec doesn't describe the rationale and solution.

I amended the PR description and added an example to the tag-spec (and corrected years in copyright comments), @RogerRiggs. I'd like to keep the "rationale and solution" in the tag-spec description brief, as it is displayed with many others in a table.

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PR Comment: https://git.openjdk.org/jtreg/pull/257#issuecomment-2783365239