Rename Arg to FnArg
diff --git a/src/lib.rs b/src/lib.rs
index 1e6cd14..a4ebe8b 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -47,8 +47,8 @@
 mod ty;
 pub use ty::{
     AngleBracketedParameterData,
-    Arg,
     BareFnTy,
+    FnArg,
     FnDecl,
     FunctionRetTy,
     MutTy,