Initial commit: Go 1.23 release state

test/fixedbugs/issue18911.dir/a.go

@@ -0,0 +1,7 @@
+// Copyright 2018 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 a
+
+var X interface{} = struct{ x int }{}

test/fixedbugs/issue18911.dir/b.go

@@ -0,0 +1,21 @@
+// Copyright 2018 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
+
+import "./a"
+import "strings"
+
+func main() {
+	defer func() {
+		p, ok := recover().(error)
+		if ok && strings.Contains(p.Error(), "different packages") {
+			return
+		}
+		panic(p)
+	}()
+
+	// expected to fail and report two identical looking (but different) types
+	_ = a.X.(struct{ x int })
+}