Parse annotations with phpstan/phpdoc-parser

[kukulich]

https://github.com/phpstan/phpdoc-parser

[Majkl578]

🔝 Will this also add support for Foo<> notation?

[kukulich]

Yes

[Majkl578]

Next PhpStorm EAP will support intersection types on parser level (but still treat them as unions), so this is more actual than ever. :)
https://youtrack.jetbrains.com/issue/WI-39419#focus=streamItem-27-3061342-0-0

[Majkl578]

https://blog.jetbrains.com/phpstorm/2018/09/phpstorm-2018-3-eap-183-2635-12/