(PUP-3351) Test using example of problematic behavior

After talking with Reid Vandewiele, it turns out that the problematic
behavior isn't directly the order of the classes themselves. Previous
assertions that there are possible conflicts from the classes when they
were done in one order or another are incorrect. The classes, when any
have parameters, are kept by the node in a hash keyed off of the class
name, which means that there is no possibility of them creating a
duplicate resource error.

The actual usecase comes down to *how* parameterized classes vs
unparameterized classes are often used. A parameterized class can often
be simply a set of shared data that the unparameterized classes depend
on (or inherit from) parameterized classes.

This modifies the test case for the reordering change to provide an
example of the use case here.