- Add tests for the following diagnostics: GD0101, GD0102, GD0103, GD0104, GD0105, GD0106, GD0107.
- Fix GD0101 not being reported any more (was filtering static classes before reporting).
- Fix GD0107 not preventing `Node` members from being exported from not-`Node` types.
- Report a diagnostic when there are multiple classes that match the script file name in the same script since that will result in a duplicate path key in the bimap and it's not allowed.
- Fix InspectorPlugin to handle empty paths in case the project was built with a previous version of Godot that used empty paths for generic scripts.
- Add tests for the new diagnostic GD0003.
- Bootstrap xUnit project to test source generators
- Implement source generator tests
- Better tests structure (put test data in cs files)
- Enable `ScriptSerializationGeneratorTests`
- Enable `ScriptPathAttributeGeneratorTests`
- Fix `NesterClass` -> `NestedClass`
- Use `Path.Combine` when dealing with paths
- Copy test data to the output directory