Call to an undefined method Mockery\ExpectationInterface|Mockery\ExpectsHigherOrderMessage::once()

```php
$mock = Mockery::mock(MyClass::class);

self::assertSth($mock);

...

private function assertSth(MockInterface $mock) : void
{
    $mock->expect('call')->once();
}
```

Gives 

> Call to an undefined method Mockery\ExpectationInterface|Mockery\ExpectsHigherOrderMessage::once()

v0.11.3

Not sure if doable 🤔 