Allow this unused macro

for tests only

schala-lang/language/src/util.rs

@@ -49,7 +49,7 @@ pub fn quick_ast(input: &str) -> crate::ast::AST {
   parser.parse().unwrap()
 }
 
-#[allow(dead_code)]
+#[allow(unused_macros)]
 macro_rules! rc {
   ($string:tt) => { Rc::new(stringify!($string).to_string()) }
 }