Move CppName's namespace into Pair
diff --git a/syntax/mangle.rs b/syntax/mangle.rs
index d1f3adc..55ffca5 100644
--- a/syntax/mangle.rs
+++ b/syntax/mangle.rs
@@ -15,13 +15,13 @@
         Some(receiver) => {
             let receiver_ident = types.resolve(&receiver.ty);
             join!(
-                efn.ident.cxx.namespace,
+                efn.ident.namespace,
                 CXXBRIDGE,
-                receiver_ident.ident,
+                receiver_ident.cxx,
                 efn.ident.rust
             )
         }
-        None => join!(efn.ident.cxx.namespace, CXXBRIDGE, efn.ident.rust),
+        None => join!(efn.ident.namespace, CXXBRIDGE, efn.ident.rust),
     }
 }