Initial commit: Go 1.23 release state

test/typeparam/issue47684b.go

@@ -0,0 +1,23 @@
+// run
+
+// Copyright 2021 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 f[G any]() interface{} {
+	return func() interface{} {
+		return func() interface{} {
+			var x G
+			return x
+		}()
+	}()
+}
+
+func main() {
+	x := f[int]()
+	if v, ok := x.(int); !ok || v != 0 {
+		panic("bad")
+	}
+}