1 files changed, 25 insertions, 0 deletions
diff --git a/tests/ui/inference/auxiliary/inference_unstable_itertools.rs b/tests/ui/inference/auxiliary/inference_unstable_itertools.rs
new file mode 100644
index 000000000..fa1efbcfe
--- /dev/null
+++ b/tests/ui/inference/auxiliary/inference_unstable_itertools.rs
@@ -0,0 +1,25 @@
+#![feature(arbitrary_self_types)]
+
+pub trait IpuItertools {
+    fn ipu_flatten(&self) -> u32 {
+        1
+    }
+
+    fn ipu_by_value_vs_by_ref(&self) -> u32 {
+        1
+    }
+
+    fn ipu_by_ref_vs_by_ref_mut(&mut self) -> u32 {
+        1
+    }
+
+    fn ipu_by_mut_ptr_vs_by_const_ptr(self: *const Self) -> u32 {
+        1
+    }
+
+    const C: i32;
+}
+
+impl IpuItertools for char {
+    const C: i32 = 1;
+}