j0k3r / php-readability / 27813522719

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JSLikeHTMLElement: Add types to methods

PHP-CS-Fixer 3.95.0 added `void_return` rule to `@Symfony:risky` ruleset.

https://github.com/PHP-CS-Fixer/PHP-CS-Fixer/releases/tag/v3.95.0
https://cs.symfony.com/doc/rules/function_notation/void_return.html

`void` type declaration is available since PHP 7.1:
https://www.php.net/manual/en/language.types.void.php

Magic methods can have type annotations but they must be compatible with the default ones
(not enforced prior to PHP 8.0):
https://php.watch/versions/8.0/magic-method-signatures

Let’s just type all the methods.

This could technically be a BC break if someone is extending
the `JSLikeHTMLElement` class, overriding the methods that previously
did not have return type hint without adding it, and calling
`registerNodeClass` on the public `dom` property but I think it is
pretty unlikely – at least there seem to be no public instances on GitHub.

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