doctrine/common — comment on commit fce661a041aa1dc3634bd1c04cacd684619579fc
File: lib/Doctrine/Common/Comparable.php line 32
By guilhermeblanco:

I'd rather consider changing the behavior. Comparable is more natural than Equatable.
We could also create Equatable and make the specific type implements the method equalTo().

Also, it needs to be fixed the docblock (refers to be existent since 2.0).