1 files changed, 17 insertions, 0 deletions
diff --git a/tests/ui/traits/next-solver/member-constraints-in-root-universe.rs b/tests/ui/traits/next-solver/member-constraints-in-root-universe.rs
new file mode 100644
index 000000000..16e95e94c
--- /dev/null
+++ b/tests/ui/traits/next-solver/member-constraints-in-root-universe.rs
@@ -0,0 +1,17 @@
+// compile-flags: -Znext-solver
+// check-pass
+
+trait Trait {
+    type Ty;
+}
+
+impl Trait for for<'a> fn(&'a u8, &'a u8) {
+    type Ty = ();
+}
+
+// argument is necessary to create universes before registering the hidden type.
+fn test<'a>(_: <fn(&u8, &u8) as Trait>::Ty) -> impl Sized {
+    "hidden type is `&'?0 str` with '?0 member of ['static,]"
+}
+
+fn main() {}