Initial commit: Go 1.23 release state

test/fixedbugs/issue4468.go

@@ -0,0 +1,32 @@
+// errorcheck
+
+// Copyright 2012 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.
+
+// Issue 4468: go/defer calls may not be parenthesized.
+
+package p
+
+type T int
+
+func (t *T) F() T {
+	return *t
+}
+
+type S struct {
+	t T
+}
+
+func F() {
+	go F            // ERROR "must be function call"
+	defer F         // ERROR "must be function call"
+	go (F)		// ERROR "must be function call|must not be parenthesized"
+	defer (F)	// ERROR "must be function call|must not be parenthesized"
+	go (F())	// ERROR "must be function call|must not be parenthesized"
+	defer (F())	// ERROR "must be function call|must not be parenthesized"
+	var s S
+	(&s.t).F()
+	go (&s.t).F()
+	defer (&s.t).F()
+}