Test for the getArrayCopy method in AbstractRestultSet

If you're using the `ArraySerializable` hydrator, then you will have a
method called `getArrayCopy` in your row object, so allow
`AbstractResultSet` to use it.
Merge pull request #5089 from akrabat/getarraycopy-check

Test for the getArrayCopy method in AbstractRestultSet
Merge branch 'feature/5089' into develop

Close #5089