Bug report

PHPStan ^0.11

Code snippet that reproduces the problem

<?php declare(strict_types = 1);

class HelloWorld
{
	public function sayHello(): void
	{
		$className = '\Foo\Bar';
		if (class_exists($className)) {
			var_dump(new $className());
		}
	}
}

https://phpstan.org/r/b895a259-7bee-488b-a8a2-a33498934f90

Class Foo\Bar not found and could not be autoloaded.

Expected output

No error.

Is this a bug or just not supported? I'm finally upgrading from 0.9 to 0.11. This used to not throw an error.