[C# 13]: Finish remaining new compiler errors and warnings #43289
Description
Visual Studio release
None
Link to speclet
- N/A
Link to Pull request
- N/A
New behavior
As we near C# 13 release, look through the new roslyn error codes and ensure that all C# 13 errors and warnings are in place.
Areas affected
- Add to What's new in C# 13: Add links to updated docs in the What's new in C# 13 article.
- Update language reference: Detail the areas in the language reference that will be updated for this feature.
- Update compiler messages: Add new (or updated) pages for new compiler messages. Include related message.
- Include in Everyday C# section*: Is this new feature included in Everyday C#?
- Tutorials: Are new tutorials required for this feature? If so, detail below
Language reference tasks
No response
Tutorial tasks
No response
Everyday C# tasks
No response