Fix chained demeter calls with type hint

[thiagorb]

The current implementation fails in the following situation:

$mock = \Mockery::mock(Order::class);
$mock->shouldReceive('getCustomer->getFirstName')->andReturn('John');
$mock->shouldReceive('getCustomer->getLastName')->andReturn('Doe');

In this case, if getCustomer has a type hint for return type, the mock for getLastName will not work. This happens because the named mock doesn't have the prefix Mockery_<count>__, so instead of Mockery_1__demeter_02db565163e0992acfde42edfd58d833_getCustomer, it will be named only demeter_02db565163e0992acfde42edfd58d833_getCustomer.

Because of that, the method Container::getKeyOfDemeterMockFor will not be able to find the mock.

Some users complained about this problem in some already closed issues:

• Problem with multiple Demeter chains? #59
• Multiple demeter chains on multiple objects #768

[davedevelopment]

Thank you 👍