Fix getDouble() causes MethodCannotBeConfiguredException

[kenjis]

If you write code like this:

$customerInfoRepository = $this->getDouble(CustomerInfoRepository::class, []);
$this->verifyInvokedOnce($customerInfoRepository, 'save');

You see the error:

PHPUnit\Framework\MockObject\MethodCannotBeConfiguredException: Trying to configure method "xxx" which cannot be configured because it does not exist, has not been specified, is final, or is static