Thanks to great https://github.com/Symplify/CodingStandard#abstract-class-should-have-prefix-abstract we check whether classes declared abstract do have Abstract
prefix. But it could be nice to check also the "opposite way", ie. the classes starting with Abstract
are in fact declared as abstract.
// @TomasVotruba didn't you heard of such fixer? Maybe it already exists somewhere 🤔?