test case2

Author: LorrensP-2158466

tests/ui/regions/closure-prop-issue-104477-case2.rs

@@ -0,0 +1,8 @@
+//@ check-pass
+// FIXME: add explanation.
+
+struct MyTy<'a, 'b, 'x>(std::cell::Cell<(&'a &'x str, &'b &'x str)>);
+fn wf<T>(_: T) {}
+fn test<'a, 'b, 'x>() {
+    |x: MyTy<'a, 'b, '_>| wf(x);
+}