Description:
------------
Union types in class return double instead type error

Test script:
---------------
class Number
{
    public function __construct(
        private int | float $number
    ) {

        print_r(gettype($number));
        exit();
    }
}

new Number("1.0");

Expected result:
----------------
Excepted Output should be: TypeError


Actual result:
--------------
Current Output is: double