Html: proper types for setHtml and addHtml methods – same as insert() method

[vitkutny]

fixes Nette\Utils\Html::insert(): Argument #2 ($child) must be of type Nette\HtmlStringable|string, XY given

[ondrejmirtes]

Please show a piece of code for which "Nette\Utils\Html::insert(): Argument #2 ($child) must be of type Nette\HtmlStringable|string, XY given" is currently reported and which this PR should fix.

Also - did you first try to send a PR to https://github.com/nette/utils?

[vitkutny]

Please show a piece of code for which "Nette\Utils\Html::insert(): Argument #2 ($child) must be of type Nette\HtmlStringable|string, XY given" is currently reported and which this PR should fix.

addHtml method only calls insert method with parameter type HtmlStringable|string. This stub update prevents from passing only \Stringable (or any other type than HtmlStringable|string) into addHtml

namespace Nette\Utils;

class Html implements \ArrayAccess, \Countable, \IteratorAggregate, HtmlStringable
{
	/**
	 * Adds new element's child.
	 */
	final public function addHtml(mixed $child): static
	{
		return $this->insert(null, $child);
	}
	
	/**
	 * Inserts child node.
	 */
	public function insert(?int $index, HtmlStringable|string $child, bool $replace = false): static
	{
	}
}

Also - did you first try to send a PR to https://github.com/nette/utils?

Right, I did not. I will :-)