1 files changed, 13 insertions, 0 deletions
diff --git a/test/typeparam/issue50259.go b/test/typeparam/issue50259.go
new file mode 100644
index 0000000..50edf8f
--- /dev/null
+++ b/test/typeparam/issue50259.go
@@ -0,0 +1,13 @@
+// compile
+
+// Copyright 2022 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package p
+
+var x T[B]
+
+type T[_ any] struct{}
+type A T[B]
+type B = T[A]