Initial commit: Go 1.23 release state

test/fixedbugs/issue17758.go

@@ -0,0 +1,17 @@
+// errorcheck
+
+// Copyright 2020 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 foo() {
+	_ = func() {}
+}
+
+func foo() { // ERROR "foo redeclared in this block|redefinition of .*foo.*"
+	_ = func() {}
+}
+
+func main() {}