1 files changed, 6 insertions, 0 deletions

diff --git a/tests/ui/issues/issue-22403.rs b/tests/ui/issues/issue-22403.rs
new file mode 100644
index 00000000000..8d855909435
--- /dev/null
+++ b/tests/ui/issues/issue-22403.rs
@@ -0,0 +1,6 @@
+// run-pass
+fn main() {
+    let x = Box::new([1, 2, 3]);
+    let y = x as Box<[i32]>;
+    println!("y: {:?}", y);
+}