Thanks 👍

The assignToPropertyTypeInferer should be removed as well, to avoid checking all the possible types and assigns.
This rule should be as simple as possible.

if no check on the assignments on other methods, then, reset on other method will cause error, as it can't detect nullability, this ensure nullability or reset by other type applied,eg:

protected function setUp()
{
   $this->a = $this->createMock(Foo::class);
}

protected function reset()
{
    $this->a = null;
}

if we check only on setUp(), that will cause it only detect as MockObject, which wrong

the only apply MockObject or ?MockObject verify already checked on later line 121 on this PR or 133 on main branch

I added test for skip with non-mock object type, eg: skip string 298f24c

I see, let's go with this version for now then. Thanks 👍