RFR: 7904071: JTReg should report stats of test collections [v2]

[Daniel Jeliński]

On Tue, 2 Sep 2025 10:49:18 GMT, Christian Stein <cstein at openjdk.org> wrote:

>> Please review this change accumulating the count numbers of TestNG's and JUnit's text report files and prints them after a test run as follows:
>> 
>>> `Framework-based tests: 188, TestNG: 104, JUnit: 84`
>> 
>> Note that an internal, yet public, API of `SummaryReporter` was changed to be package-private now.
>
> Christian Stein has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Improve message by showing the composition of the sum

Marked as reviewed by djelinski (no project role).

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PR Review: https://git.openjdk.org/jtreg/pull/283#pullrequestreview-3176035350