From 218caa410aa38c29984be31a5229b9fa717560ee Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:19:13 +0200
Subject: Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 tests/ui/traits/issue-22019.rs | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 tests/ui/traits/issue-22019.rs

(limited to 'tests/ui/traits/issue-22019.rs')

diff --git a/tests/ui/traits/issue-22019.rs b/tests/ui/traits/issue-22019.rs
new file mode 100644
index 000000000..1a887f0f3
--- /dev/null
+++ b/tests/ui/traits/issue-22019.rs
@@ -0,0 +1,34 @@
+// run-pass
+// Test an issue where global caching was causing free regions from
+// distinct scopes to be compared (`'g` and `'h`). The only important
+// thing is that compilation succeeds here.
+
+// pretty-expanded FIXME #23616
+
+#![allow(missing_copy_implementations)]
+#![allow(unused_variables)]
+
+use std::borrow::ToOwned;
+
+pub struct CFGNode;
+
+pub type Node<'a> = &'a CFGNode;
+
+pub trait GraphWalk<'c, N> {
+    /// Returns all the nodes in this graph.
+    fn nodes(&'c self) where [N]:ToOwned<Owned=Vec<N>>;
+}
+
+impl<'g> GraphWalk<'g, Node<'g>> for u32
+{
+    fn nodes(&'g self) where [Node<'g>]:ToOwned<Owned=Vec<Node<'g>>>
+    { loop { } }
+}
+
+impl<'h> GraphWalk<'h, Node<'h>> for u64
+{
+    fn nodes(&'h self) where [Node<'h>]:ToOwned<Owned=Vec<Node<'h>>>
+    { loop { } }
+}
+
+fn main()  { }
-- 
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