Potential adoption of run-tests.php replacement

Hi internals, As most of you know, there is this script called run-tests.php which is huge in size and hard to maintain. I also heard some wanted it to support parallel tests execution and probably other things. There is a project I've created a long time ago and still maintaining (https://github.com/nazar-pc/phpt-tests-runner) that should be able to run most of the tests without changes already with colored output and the whole thing is a fraction of run-tests.php's size. How I'd like to work towards mainlining it into php-src in case there is a desire and an agreement on such transition. If this seems like a good idea, it would be very useful if someone can enumerate the list of features that are currently used/needed from run-tests.php and which replacement should offer, alongside with features on top that might be useful (like parallel execution). If there was similar discussion already and there is an accepted solution there, let me know. -- Sincerely, Nazar Mokrynskyi github.com/nazar-pc