godefererr - Analyser that reports incorrectly returned errors from defer closures

Age	Commit message (Collapse)	Author
2023-05-21	Check whether returned name matches defer error name	Teddy Wing
	Ensure the name of the returned error variable matches the name of the error variable assigned in the `defer` statement.
2023-05-21	Inspect return value looking at type and name	Teddy Wing
	Want to check that the `return` statement uses the same variable used in the `defer` closure. Start inspecting the values to figure out how we can narrow that down. Add a test case for a "good" assignment of a returned error in `defer`.
2023-05-21	Add test to ensure error vars declared in defer closure are not reported	Teddy Wing

2023-05-20	Report when error declaration in signature is needed	Teddy Wing
	While looking at the assignments in the `defer`, if we encounter an `error`-type assignment, emit a diagnostic if the error named in the lhs of the assignment is not present in the return signature's names. Not sure if this makes sense to me yet. I probably only want to report a problem for a non-declare assignment of an error value when the error type in the return signature is _not_ named at all.
2023-05-20	Find function signature return value names	Teddy Wing
	And add a test function that does have named returned values.
2023-05-18	Ideas for an analyser for returning errors from defer	Teddy Wing
	Still working out how to traverse the AST to be able to see the objects I need.