Initial commit: Go 1.23 release state

test/fixedbugs/issue19671.go

@@ -0,0 +1,16 @@
+// compile
+
+// Copyright 2017 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.
+
+// Used to crash when compiling assignments involving [0]T,
+// where T is not SSA-able.
+
+package a
+
+func f() {
+	var i int
+	arr := [0][2]int{}
+	arr[i][0] = 0
+}