Use a helper function

src/twopass.rs

@@ -546,9 +546,6 @@ mod tests {
 		};
 		let remember = build(&remember);
 		let the_answerer = remember.call(None, &[Some(42.into())]);
-		let Some(ValueInner::Function(f)) = the_answerer else {
-			panic!("a function expected");
-		};
-		assert_eq!(f.call(&[]), Some(42.into()));
+		assert_eq!(call(&the_answerer, &[]), Some(42.into()));
 	}
 }