fix: remove removed rector rule from skip list and fix arrow function return types

Author: gr8man

rector.php

@@ -25,7 +25,6 @@
 use Rector\DeadCode\Rector\ClassMethod\RemoveUnusedConstructorParamRector;
 use Rector\DeadCode\Rector\ClassMethod\RemoveUnusedPrivateMethodRector;
 use Rector\DeadCode\Rector\MethodCall\RemoveNullArgOnNullDefaultParamRector;
-use Rector\DeadCode\Rector\Property\RemoveDefaultValueFromAssignedPropertyRector;
 use Rector\EarlyReturn\Rector\Foreach_\ChangeNestedForeachIfsToEarlyContinueRector;
 use Rector\EarlyReturn\Rector\If_\ChangeIfElseValueAssignToEarlyReturnRector;
 use Rector\EarlyReturn\Rector\If_\RemoveAlwaysElseRector;
@@ -104,9 +103,6 @@
             __DIR__ . '/system/HTTP/Response.php',
         ],
 
-        // Keep property defaults for backward compatibility.
-        RemoveDefaultValueFromAssignedPropertyRector::class,
-
         ReadOnlyPropertyRector::class => [
             __DIR__ . '/system/Cache/ResponseCache.php',
             __DIR__ . '/system/HotReloader/IteratorFilter.php',

tests/system/Session/Handlers/FileHandlerTest.php

@@ -223,7 +223,7 @@ public function testOpenThrowsForInvalidSavePath(): void
         $handler = $this->getInstance();
 
         $this->expectException(SessionException::class);
-        $this->withSuppressedErrors(fn () => $handler->open($this->tempPath . '/blocker/sub', $this->sessionName));
+        $this->withSuppressedErrors(fn (): bool => $handler->open($this->tempPath . '/blocker/sub', $this->sessionName));
     }
 
     public function testOpenThrowsForWriteProtectedSavePath(): void
@@ -300,7 +300,7 @@ public function testReadFailsWhenFileCannotBeOpened(): void
         $id = self::sessionId('4');
         mkdir($this->tempPath . '/' . $this->sessionName . $id, 0700, true);
 
-        $result = $this->withSuppressedErrors(static fn () => $handler->read($id));
+        $result = $this->withSuppressedErrors(static fn (): string|false => $handler->read($id));
 
         $this->assertFalse($result);
         $this->assertLogContains('error', 'Session: Unable to open file');
@@ -526,7 +526,7 @@ public function testGCWhenDirectoryCannotBeOpened(): void
         try {
             $handler = $this->getInstance(['savePath' => $dir]);
 
-            $result = $this->withSuppressedErrors(static fn () => $handler->gc(3600));
+            $result = $this->withSuppressedErrors(static fn (): int|false => $handler->gc(3600));
 
             $this->assertFalse($result);
             $this->assertLogContains('debug', "Session: Garbage collector couldn't list files under directory");