Merge pull request #48 from dtolnay/deadcode

Ignore intentional unconstructed struct in ui test helper crate

Author: dtolnay

tests/helper/lib.rs

@@ -1,5 +1,7 @@
+#![allow(dead_code)]
+
 use ref_cast::RefCastCustom;
 
 #[derive(RefCastCustom)]
 #[repr(transparent)]
-pub struct Struct(#[allow(dead_code)] str);
+pub struct Struct(str);