Remove dependency of ui test on whether rust-src is installed
diff --git a/syntax/mod.rs b/syntax/mod.rs
index 88c96e8..cd6f235 100644
--- a/syntax/mod.rs
+++ b/syntax/mod.rs
@@ -46,6 +46,7 @@
     pub doc: Doc,
     pub type_token: Token![type],
     pub ident: Ident,
+    pub semi_token: Token![;],
 }
 
 pub struct Struct {