Merge branch '6.4' into 7.3

* 6.4:
  Replace __sleep/wakeup() by __(un)serialize() for throwing and internal usages

Author: nicolas-grekas

Pipes/UnixPipes.php

@@ -31,12 +31,12 @@ public function __construct(
         parent::__construct($input);
     }
 
-    public function __sleep(): array
+    public function __serialize(): array
     {
         throw new \BadMethodCallException('Cannot serialize '.__CLASS__);
     }
 
-    public function __wakeup(): void
+    public function __unserialize(array $data): void
     {
         throw new \BadMethodCallException('Cannot unserialize '.__CLASS__);
     }

Pipes/WindowsPipes.php

@@ -87,12 +87,12 @@ public function __construct(
         parent::__construct($input);
     }
 
-    public function __sleep(): array
+    public function __serialize(): array
     {
         throw new \BadMethodCallException('Cannot serialize '.__CLASS__);
     }
 
-    public function __wakeup(): void
+    public function __unserialize(array $data): void
     {
         throw new \BadMethodCallException('Cannot unserialize '.__CLASS__);
     }

Process.php

@@ -197,12 +197,12 @@ public static function fromShellCommandline(string $command, ?string $cwd = null
         return $process;
     }
 
-    public function __sleep(): array
+    public function __serialize(): array
     {
         throw new \BadMethodCallException('Cannot serialize '.__CLASS__);
     }
 
-    public function __wakeup(): void
+    public function __unserialize(array $data): void
     {
         throw new \BadMethodCallException('Cannot unserialize '.__CLASS__);
     }