Epic! Will this be tagged? Thanks so much!!

Not yet, this MR is very simple towards properties. Truely advanced analysis is almost-ready in #281, I'm currently testing it on multiple repositories and composing some yet-to-decide edgecases. We will support even neverRead and neverWritten parts and all that combined with property hook craziness and transitivity. All while supporting even writes via promoted properties or ASTs like [$foo->first, $foo->last] = explode() or read-writes like return $this->foo ??= 1; etc