Initial commit: Go 1.23 release state

test/syntax/typesw.go

@@ -0,0 +1,13 @@
+// errorcheck
+
+// Copyright 2011 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 main
+
+func main() {
+	switch main() := interface{}(nil).(type) {	// ERROR "invalid variable name|cannot use .* as value"
+	default:
+	}
+}