Fix a few things.
Make sure that we have scanned classes.

Signed-off-by: Taylor Otwell <taylorotwell@gmail.com>
Make sure that we have classes to scan.

Signed-off-by: Taylor Otwell <taylorotwell@gmail.com>
Add Illuminate\Pagination\Paginator::isEmpty(). Make it easier to iterate since Illuminate\Support\Collection has the same method.

Signed-off-by: crynobone <crynobone@gmail.com>
Merge pull request #6126 from crynobone/feature/paginator-isempty

[5.0] Add Illuminate\Pagination\Paginator::isEmpty()