1 files changed, 17 insertions, 0 deletions
diff --git a/src/test/ui/regions/region-bound-same-bounds-in-trait-and-impl.rs b/src/test/ui/regions/region-bound-same-bounds-in-trait-and-impl.rs
new file mode 100644
index 000000000..68056370c
--- /dev/null
+++ b/src/test/ui/regions/region-bound-same-bounds-in-trait-and-impl.rs
@@ -0,0 +1,17 @@
+// Test related to #22779, but where the `'a:'b` relation
+// appears in the trait too. No error here.
+
+// check-pass
+
+trait Tr<'a, T> {
+    fn renew<'b: 'a>(self) -> &'b mut [T] where 'a: 'b;
+}
+
+impl<'a, T> Tr<'a, T> for &'a mut [T] {
+    fn renew<'b: 'a>(self) -> &'b mut [T] where 'a: 'b {
+        &mut self[..]
+    }
+}
+
+
+fn main() { }