feature #50842 Add missing return types to magic methods (wouterj)

This PR was merged into the 6.4 branch.

Discussion
----------

Add missing return types to magic methods

| Q             | A
| ------------- | ---
| Branch?       | 6.4
| Bug fix?      | no
| New feature?  | no
| Deprecations? | yes
| Tickets       | -
| License       | MIT
| Doc PR        | -

I promise, these 72 methods really are the last methods that did not have a return type already 🙃

Commits
-------

6b270010c4 Add missing return types to magic methods

Author: nicolas-grekas

Chunk/ErrorChunk.php

@@ -98,6 +98,9 @@ public function __sleep(): array
         throw new \BadMethodCallException('Cannot serialize '.__CLASS__);
     }
 
+    /**
+     * @return void
+     */
     public function __wakeup()
     {
         throw new \BadMethodCallException('Cannot unserialize '.__CLASS__);

HttplugClient.php

@@ -251,7 +251,7 @@ public function __sleep(): array
         throw new \BadMethodCallException('Cannot serialize '.__CLASS__);
     }
 
-    public function __wakeup()
+    public function __wakeup(): void
     {
         throw new \BadMethodCallException('Cannot unserialize '.__CLASS__);
     }

Response/AmpResponse.php

@@ -144,7 +144,7 @@ public function __sleep(): array
         throw new \BadMethodCallException('Cannot serialize '.__CLASS__);
     }
 
-    public function __wakeup()
+    public function __wakeup(): void
     {
         throw new \BadMethodCallException('Cannot unserialize '.__CLASS__);
     }

Response/CommonResponseTrait.php

@@ -122,6 +122,9 @@ public function __sleep(): array
         throw new \BadMethodCallException('Cannot serialize '.__CLASS__);
     }
 
+    /**
+     * @return void
+     */
     public function __wakeup()
     {
         throw new \BadMethodCallException('Cannot unserialize '.__CLASS__);

Response/TraceableResponse.php

@@ -49,7 +49,7 @@ public function __sleep(): array
         throw new \BadMethodCallException('Cannot serialize '.__CLASS__);
     }
 
-    public function __wakeup()
+    public function __wakeup(): void
     {
         throw new \BadMethodCallException('Cannot unserialize '.__CLASS__);
     }