Add test for issue rust-lang#81193

Author: marmeladema

src/test/ui/associated-type-bounds/issue-81193.rs

@@ -0,0 +1,15 @@
+// check-pass
+
+#![feature(associated_type_bounds)]
+
+trait A<'a, 'b> {}
+
+trait B<'a, 'b, 'c> {}
+
+fn err<'u, 'a, F>()
+where
+    for<'b> F: Iterator<Item: for<'c> B<'a, 'b, 'c> + for<'c> A<'a, 'c>>,
+{
+}
+
+fn main() {}