1 files changed, 20 insertions, 0 deletions
diff --git a/tests/ui/traits/trait-upcasting/normalization.rs b/tests/ui/traits/trait-upcasting/normalization.rs
new file mode 100644
index 000000000..c78338b0d
--- /dev/null
+++ b/tests/ui/traits/trait-upcasting/normalization.rs
@@ -0,0 +1,20 @@
+// check-pass
+// issue: 114113
+// revisions: current next
+//[next] compile-flags: -Ztrait-solver=next
+
+#![feature(trait_upcasting)]
+
+trait Mirror {
+    type Assoc;
+}
+impl<T> Mirror for T {
+    type Assoc = T;
+}
+
+trait Bar<T> {}
+trait Foo<T>: Bar<<T as Mirror>::Assoc> {}
+
+fn upcast<T>(x: &dyn Foo<T>) -> &dyn Bar<T> { x }
+
+fn main() {}