HELP!!! You broke my tests!!!

See the docs for help.

PR: https://github.com/moodle/devdocs/pull/1234

Issue description:

Once all of the preparation tasks are complete we can start to investigate moving to PHPUnit 10+.

Rather than redirecting the runBare methods as we originally anticipated, we are able to make use of the [\PHPUnit\Framework\Attributes\Before]}} and [\PHPUnit\Framework\Attributes\After]}} attributes to configure this.

The main issues encountered were:

• data provider array values must match test method function param names – I originally split this out into a separate issue but quickly realised that this was really tricky to test without the rest of this branch
• PHPunit no longer fails tests on warnings - this was somewhat more complex to fix
• PHPUnit Mocking has changed to no longer allow mocking of a destructor. This means that the original destructor is always called.
  As a result of this I had to modify \core\lock\lock to move the current destructor logic to a new release_if_not_released() method which can be mocked and then calling this from the constructor.

I also had to polyfill some removed test helper methods, including:

• assertTag
• getName
• isInIsolation

And update tests for changes to:

• assertEqualsCanonicalizing

Empty data providers now cause a warning, so some dataProviders which were commented out were instead skipped

Finally I discovered that while we removed all uses of setMethods in MDL-71036, several had crept back.