ClosureUsesThisRule produces false positive with Prophecy will()

[InvisibleSmiley]

If you replace $that by $this in the closure of the following, the test will fail.

At runtime, the type of $this is \Prophecy\Prophecy\ObjectProphecy and the type of $that is MyTest.

<?php

declare(strict_types=1);

// Requires phpunit/phpunit, phpspec/prophecy and phpspec/prophecy-phpunit

namespace foo;

use PHPUnit\Framework\TestCase;
use Prophecy\Argument;
use Prophecy\PhpUnit\ProphecyTrait;

class MyTarget
{
    public function run(string $input): string
    {
        return $input;
    }
}

class MyTest extends TestCase
{
    use ProphecyTrait;

    private array $stuff = ['foo' => 'bar'];

    public function testMyMock(): void
    {
        $prophecy = $this->prophesize(MyTarget::class);
        $that = $this;
        $prophecy->run(Argument::type('string'))->will(
            function (array $args) use ($that): string {
                return $that->stuff[$args[0]] ?? $args[0];
            }
        );
        $target = $prophecy->reveal();
        $result = $target->run('foo');
        self::assertSame('bar', $result);
    }
}