Similar mocks with different argument cloning options should not be equal

The following should return different mocks:

```php
$mockWithCloning = $this->getMockBuilder('SomeClass')
                        ->setMethods(array('doSomethingElse'))
                        ->enableArgumentCloning()
                        ->getMock();

$mockWithoutCloning = $this->getMockBuilder('SomeClass')
                           ->setMethods(array('doSomethingElse'))
                           ->disableArgumentCloning()
                           ->getMock();
```