Initial commit: Go 1.23 release state

test/fixedbugs/issue20789.go

@@ -0,0 +1,13 @@
+// errorcheck
+
+// 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.
+
+// Make sure this doesn't crash the compiler.
+// (This test should be part of the internal/syntax
+// package, but we don't have a general test framework
+// there yet, so put it here for now. See also #20800.)
+
+package e
+func([<-chan<-[func u){go // ERROR "unexpected name u"