Initial commit: Go 1.23 release state

test/fixedbugs/issue23823.go

@@ -0,0 +1,16 @@
+// errorcheck
+
+// 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 p
+
+type I1 = interface {
+	I2
+}
+
+// BAD: type loop should mention I1; see also #41669
+type I2 interface { // GC_ERROR "invalid recursive type: I2 refers to itself"
+	I1 // GCCGO_ERROR "invalid recursive interface"
+}