1 files changed, 12 insertions, 0 deletions
diff --git a/src/test/ui/type-alias-impl-trait/generic_duplicate_param_use10.rs b/src/test/ui/type-alias-impl-trait/generic_duplicate_param_use10.rs
new file mode 100644
index 000000000..c17d595db
--- /dev/null
+++ b/src/test/ui/type-alias-impl-trait/generic_duplicate_param_use10.rs
@@ -0,0 +1,12 @@
+// check-pass
+#![feature(type_alias_impl_trait)]
+
+use std::fmt::Debug;
+
+fn main() {}
+
+type Two<T: Debug, U> = impl Debug;
+
+fn two<T: Debug, U: Debug>(t: T, _: U) -> Two<T, U> {
+    (t, 4u32)
+}