Used to only compare the arguments, nether the class nor the qualifier (the
outer class instance for inner classes constructor calls).

A protected field is not accessible unless we are referencing it from within a
class which extends its owner. Therefore, we may use a synthetic property with
the same name as long as we do not have access to the field.

So we are closer to a realistic setup and can tell when we accidentally look up
a class in the wrong project.
Also allows us to have changes in a class but not to the class or its
package (i.e. same file).