[fine] Even more resilience, I can stop now

Also fix a bug, could not return from a method OOPS

fine/src/semantics.rs

@@ -1907,7 +1907,7 @@ fn check_return_statement(s: &Semantics, tree: &Tree) {
 
     let function_type = s.type_of(enclosing_function);
     match function_type {
-        Type::Function(_, expected_type) => {
+        Type::Function(_, expected_type) | Type::Method(_, _, expected_type) => {
             let actual_type = if let Some(expr) = tree.nth_tree(1) {
                 s.type_of(expr)
             } else {