Update ProviderTest.php
Update ProviderTestClasses.php
Update ProviderTest.php
Update ProviderTestClasses.php
Inconsistencies if class starts with backslash

If you define of share a class name starting with a backslash and later try to make the class without the first backslash then that would give some problems this fixes that. 

Added two test cases to show it.
Merge pull request #41 from Alexssssss/patch-2

Test case for issue #40