add callback types for array_uintersect etc v2

[schlndh]

This is a more advanced alternative to #3282
Fixes phpstan/phpstan#7707

I didn't go the route you suggested here: #3282 (comment) . Instead, I bypassed php8-stubs for these functions so that they don't conflict with the new stubs. And I added support for in-the-middle variadic parameter to FunctionCallParametersCheck. IMO handling it directly in the reflection should cause less inconsistency.

[schlndh]

Alternatively, I could broaden the type of the callbacks in function map to callable and then I wouldn't need this. I'm not sure what's better.

[schlndh]

I didn't want to complicate it with the php8-stubs. The issue is that the stubs look like this:

/** @param array|callable $rest */
function array_intersect_uassoc(array $array, ...$rest): array
{
}

which then overrides the newly introduced stub. So I needed to skip them somehow. I suppose an alternative would be to skip php8-stubs where the last parameter is ...$rest, but I prefer this more explicit way.

[ondrejmirtes]

Hi, I appreciate your effort but I'm not really sure about this approach. This isn't really valid PHP:

function array_udiff(
    array $array,
    array ...$arrays,
    callable $value_compare_func,
): array {}

So stubs shouldn't be written like this and info with this structure should not appear in reflection. The fact you need to handle this situation in src/Rules/FunctionCallParametersCheck.php (in the rules layer) is a sign we might break a bunch of code that would forget to handle it.

To modify the signature on the fly based on the actual call args with my suggestion from here #3282 (comment) would be much more palatable for me.