Update to go1.25.0

test/fixedbugs/issue72844.go

@@ -0,0 +1,70 @@
+// run
+
+// Copyright 2025 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
+
+//go:noinline
+func nilPtrFunc() *[4]int {
+	return nil
+}
+
+var nilPtrVar *[4]int
+
+func testLen1() {
+	_ = len(*nilPtrFunc())
+}
+
+func testLen2() {
+	_ = len(nilPtrFunc())
+}
+
+func testLen3() {
+	_ = len(*nilPtrVar)
+}
+
+func testLen4() {
+	_ = len(nilPtrVar)
+}
+
+func testRange1() {
+	for range *nilPtrFunc() {
+	}
+}
+func testRange2() {
+	for range nilPtrFunc() {
+	}
+}
+func testRange3() {
+	for range *nilPtrVar {
+	}
+}
+func testRange4() {
+	for range nilPtrVar {
+	}
+}
+
+func main() {
+	shouldPanic(testLen1)
+	shouldNotPanic(testLen2)
+	shouldNotPanic(testLen3)
+	shouldNotPanic(testLen4)
+	shouldPanic(testRange1)
+	shouldNotPanic(testRange2)
+	shouldNotPanic(testRange3)
+	shouldNotPanic(testRange4)
+}
+
+func shouldPanic(f func()) {
+	defer func() {
+		if e := recover(); e == nil {
+			panic("should have panicked")
+		}
+	}()
+	f()
+}
+func shouldNotPanic(f func()) {
+	f()
+}