Update to go1.25.0

test/fixedbugs/issue74379b.go

@@ -0,0 +1,32 @@
+// 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
+
+import (
+	"errors"
+	"fmt"
+	"os"
+)
+
+func crashOnErr(err error) int {
+	if err != nil {
+		panic(err)
+	}
+	return 10
+}
+
+func main() {
+	defer func() {
+		if recover() == nil {
+			fmt.Println("failed to have expected panic")
+			os.Exit(1)
+		}
+	}()
+
+	s := make([]int, crashOnErr(errors.New("test error")))
+	println("unreachable: len(s) =", len(s))
+}