Ensure the saved values for the hidden and hidden until fields are
populated when editing a grade category. Fix behaviour on enabling
the hidden until field.
Re-enable tests commented out in eba1d32c.
These are the only cases 100% safe to apply the renaming of the
testcase class names to match the file names.
All other cases are not safe, because they are missing namespace
and may enter into name conflicts. Adding namespaces is not as
simple as imagined because it implies to, also, add a good number
of modifications to core. See the issue for more details.
- Some small namespace/use/MOODLE_INTERNAL/requires reorganization.
- Move file phpdocs to class phpdocs.
- Move external method names to be new "execute" default ones.
- Move unit tests to matching core_grades\external namespace.
- Add missing clean_returnvalue() calls.
