False positive InvalidCast when using never as template for class-string with template

[AndrolGenhald]

https://psalm.dev/r/9a66468115

Probably somewhat related to #7913.

[psalm-github-bot]

I found these snippets:

https://psalm.dev/r/9a66468115

<?php

/**
 * @template T
 * @psalm-consistent-constructor
 */
class Foo
{
    /** @return ?T */
    public function bar()
    {
    }
}

/** @extends Foo<string> */
class Foo1 extends Foo {}

/** @extends Foo<never> */
class Foo2 extends Foo {}

/**
 * @template T
 * @template TFoo of Foo<T>
 *
 * @param class-string<TFoo> $fooClass
 * @return T
 */
function bar(string $fooClass)
{
    return (new $fooClass)->bar();
}

/** @psalm-trace $baz */
$baz = bar(Foo1::class);
/** @psalm-trace $baz */
$baz = bar(Foo2::class);

Psalm output (using commit 85fe7e8):

INFO: Trace - 34:1 - $baz: string

ERROR: InvalidCast - 36:12 - Foo2 cannot be cast to string

ERROR: NoValue - 36:1 - This function or method call never returns output

[roxblnfk]

I have the same error

https://psalm.dev/r/1cf2cacfc8

[psalm-github-bot]

I found these snippets:

https://psalm.dev/r/1cf2cacfc8

<?php
/**
 * @template TClass of object
 */
interface InjectorInterface {}
interface Binder {
    /**
     * @template TClass of object
     *
     * @param class-string<TClass> $class
     * @param class-string<InjectorInterface<TClass>> $injector
     */
    public function bindInjector(string $class, string $injector): void;
}

class Bar implements Binder {    
    public function __construct(
    	private Binder $binder,
    ){}
    
    public function bindInjector(string $class, string $injector): void
    {
        $this->binder->bindInjector($class, $injector);
    }   
}

Psalm output (using commit e784128):

ERROR: InvalidCast - 23:45 - InjectorInterface<TClass:fn-binder::bindinjector as object> cannot be cast to string

[orklah]

fixed in #9738 !