Description:
------------
As it states in the summary, up until PHP 7.1.26, implementing an interface method without providing the full signature would cause a fatal error. Starting PHP 7.2.0 it appears to be more lax. In the example, the missing string parameter type is causing a fatal error prior to PHP 7.2.0.

Test script:
---------------
<?php

interface SomeInterface {
    public function setSome(string $some);
}

class SomeClass implements SomeInterface {
    public function setSome($some){}
}

Expected result:
----------------
Fatal error: Declaration of SomeClass::setSome($some) must be compatible with SomeInterface::setSome(string $some)