From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:02:58 +0200
Subject: Adding upstream version 1.64.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/test/ui/issues/issue-18906.rs | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 src/test/ui/issues/issue-18906.rs

(limited to 'src/test/ui/issues/issue-18906.rs')

diff --git a/src/test/ui/issues/issue-18906.rs b/src/test/ui/issues/issue-18906.rs
new file mode 100644
index 000000000..976a9f49b
--- /dev/null
+++ b/src/test/ui/issues/issue-18906.rs
@@ -0,0 +1,30 @@
+// check-pass
+#![allow(dead_code)]
+// pretty-expanded FIXME #23616
+
+pub trait Borrow<Borrowed: ?Sized> {
+        fn borrow(&self) -> &Borrowed;
+}
+
+impl<T: Sized> Borrow<T> for T {
+        fn borrow(&self) -> &T { self }
+}
+
+trait Foo {
+        fn foo(&self, other: &Self);
+}
+
+fn bar<K, Q>(k: &K, q: &Q) where K: Borrow<Q>, Q: Foo {
+    q.foo(k.borrow())
+}
+
+struct MyTree<K>(K);
+
+impl<K> MyTree<K> {
+    // This caused a failure in #18906
+    fn bar<Q>(k: &K, q: &Q) where K: Borrow<Q>, Q: Foo {
+        q.foo(k.borrow())
+    }
+}
+
+fn main() {}
-- 
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