Add branch coverage statistics to XML report output

[chiefmyron]

Q	A
php-code-coverage version	10.1.16
PHP version	8.3.2
Driver	Xdebug
Xdebug version	3.3.1
Installation Method	Composer
Usage Method	PHPUnit
PHPUnit version (if used)	10.5.37

I'm the maintainer of a VS Code extension that integrates PHPUnit with the VS Code Test Explorer, and I'd like to update it to support the new feature that allows individual tests to be associated with test coverage lines.

Currently, I'm using the Clover XML report to pick up code coverage statistics, which has been working well. However, it doesn't include the detail of which specific test covered each line. From what I can tell, the Clover XSD schema will not support adding this type of detail.

The PHPUnit XML report does include associations of tests to individual line coverage. However, the XML report does not seem to use branch coverage statistics, even when they are available.

Is there any plan to enhance the XML report to include branch coverage statistics? I am happy to put together a PR if that helps.

[chiefmyron]

I have created an initial PR with this functionality (#1057).