Merge branch '7.4' into 8.0

* 7.4: (21 commits)
  [ObjectMapper] lazy loading
  [Filesystem] Unify logic for isAbsolute() in Path
  [DependencyInjection] Include return type in AppReference shape
  [Finder] Make method calls explicit in ExcludeDirectoryFilterIterator
  [Cache] Remove unset call on undefined variable in PhpArrayAdapter
  [Twig] Ensure WrappedTemplatedEmail::getReturnPath() returns a string
  [Routing] Simplify importing routes defined on controller services
  Fix tests
  [DependendcyInjection] Improve shape for "from_callable" definitions
  [PHPDoc] Fix various PHPDoc syntax errors
  [Console] Add missing VERBOSITY_SILENT case in CommandDataCollector
  [Notifier] Remove unused $transportName argument in EmailChannel::notify()
  [Translation] Remove an unused argument passed to parseNode() method
  [HttpClient] Reject 3xx pushed responses
  [Serializer] Use Asia/Tokyo instead of Japan in tests
  [ProxyManagerBridge] Remove comment that reference github discussion
  [JsonPath] Remove unused "nothing" property from JsonCrawler
  [ErrorHandler] Improve PHPDoc precision in SerializerErrorRenderer
  [Routing] Fix matching the "0" URL
  [Form] Fix EnumType choice_label logic for grouped choices
  ...

Author: nicolas-grekas

JsonCrawler.php

@@ -30,8 +30,6 @@
  */
 final class JsonCrawler implements JsonCrawlerInterface
 {
-    private static \stdClass $nothing;
-
     private const RFC9535_FUNCTIONS = [
         'length' => true,
         'count' => true,
@@ -831,8 +829,8 @@ private function compare(mixed $left, mixed $right, string $operator): bool
 
     private function compareEquality(mixed $left, mixed $right): bool
     {
-        $leftIsNothing = $left === Nothing::Nothing;
-        $rightIsNothing = $right === Nothing::Nothing;
+        $leftIsNothing = Nothing::Nothing === $left;
+        $rightIsNothing = Nothing::Nothing === $right;
 
         if (
             $leftIsNothing && $rightIsNothing