Auto merge of #30060 - jonas-schievink:asparagus, r=nikomatsakis

Fixes #27092
Fixes #30005

src/test/compile-fail/macro-missing-fragment.rs

@@ -0,0 +1,17 @@
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+macro_rules! m {
+    ( $( any_token $field_rust_type )* ) => {}; //~ ERROR missing fragment
+}
+
+fn main() {
+    m!();
+}