Allow multiple arg refs if C++ function is unsafe extern
diff --git a/syntax/mod.rs b/syntax/mod.rs
index 33ed31c..94c2cc8 100644
--- a/syntax/mod.rs
+++ b/syntax/mod.rs
@@ -98,6 +98,7 @@
     pub name: Pair,
     pub sig: Signature,
     pub semi_token: Token![;],
+    pub trusted: bool,
 }
 
 pub struct TypeAlias {