rollup merge of #20084: barosl/struct-variant-field-err

Fixes #19922.

src/test/compile-fail/issue-19922.rs

@@ -0,0 +1,18 @@
+// Copyright 2014 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.
+
+enum Homura {
+    Akemi { madoka: () }
+}
+
+fn main() {
+    let homura = Homura::Akemi { kaname: () };
+    //~^ ERROR struct variant `Homura::Akemi` has no field named `kaname`
+}