Use Error and Result from root in tests
diff --git a/src/expr.rs b/src/expr.rs
index 0251aa2..85f02e4 100644
--- a/src/expr.rs
+++ b/src/expr.rs
@@ -2303,8 +2303,8 @@
         /// #[macro_use]
         /// extern crate syn;
         ///
-        /// use syn::{token, Attribute, Block, Ident, Stmt};
-        /// use syn::parse::{Parse, ParseStream, Result};
+        /// use syn::{token, Attribute, Block, Ident, Result, Stmt};
+        /// use syn::parse::{Parse, ParseStream};
         ///
         /// // Parse a function with no generics or parameter list.
         /// //