go source for verification 2026-05-22

test/typeparam/issue50317.go

@@ -0,0 +1,15 @@
+// errorcheck
+
+// 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
+
+type S struct{}
+
+func (S) _[_ any]() {} // ERROR "method must have no type parameters"
+
+type _ interface {
+	m[_ any]() // ERROR "method must have no type parameters"
+}