Create 'delimited!' macro for tests
diff --git a/tests/test_precedence.rs b/tests/test_precedence.rs
index fbe27e8..8af0941 100644
--- a/tests/test_precedence.rs
+++ b/tests/test_precedence.rs
@@ -31,8 +31,10 @@
 
 use common::{parse, respan};
 
-#[allow(dead_code)]
 #[macro_use]
+mod macros;
+
+#[allow(dead_code)]
 mod common;
 
 /// Test some pre-set expressions chosen by us.