Rollup merge of rust-lang#99549 - JohnTitor:issue-52304, r=compiler-errors

Add regression test for rust-lang#52304

Closes rust-lang#52304
r? ``@compiler-errors``

Signed-off-by: Yuki Okushi <jtitor@2k36.org>

Author: matthiaskrgr

src/test/ui/generator/issue-52304.rs

@@ -0,0 +1,11 @@
+// check-pass
+
+#![feature(generators, generator_trait)]
+
+use std::ops::Generator;
+
+pub fn example() -> impl Generator {
+    || yield &1
+}
+
+fn main() {}