Initial commit: Go 1.23 release state

test/fixedbugs/issue5089.go

@@ -0,0 +1,15 @@
+// errorcheck
+
+// Copyright 2013 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.
+
+// issue 5089: gc allows methods on non-locals if symbol already exists
+
+package p
+
+import "bufio"
+
+func (b *bufio.Reader) Buffered() int { // ERROR "non-local|redefinition"
+	return -1
+}