Description:
------------
Given a script without declare_strict but a method with defined return type.
The method returns an integer but the stored value might be a string.

I would expect PHP to do a type cast which works in general.
But it does not work with example string.

Test script:
---------------
class Test
{
    protected $property;
    public function __construct() {
        $this->property = 10;
    }
    public function getProperty(): ?int {
        return $this->property;
    }
    public function setProperty($value) {
        $this->property = $value;
    }
}
$subject = new Test;
var_dump($subject->getProperty()); // works
$subject->setProperty((int) '{$PID.event.import.ismf.storagePid}'); // works
var_dump($subject->getProperty()); // works
$subject->setProperty('{$PID.event.import.ismf.storagePid}'); // works
var_dump($subject->getProperty()); // breaks



Expected result:
----------------
I would expect the last line to return the integer 0 instead of an TypeError.

Actual result:
--------------
The script fails with

PHP Fatal error:  Uncaught TypeError: Return value of Test::getProperty() must be of the type int, string returned