minor #53322 Leverage ReflectionFunction::isAnonymous() (nicolas-grekas)

This PR was merged into the 7.1 branch.

Discussion
----------

Leverage ReflectionFunction::isAnonymous()

| Q             | A
| ------------- | ---
| Branch?       | 7.1
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Issues        | -
| License       | MIT

Introduced in PHP 8.2

Commits
-------

1d26010b48 Leverage ReflectionFunction::isAnonymous()

Author: nicolas-grekas

Console/Descriptor/JsonDescriptor.php

@@ -393,7 +393,7 @@ private function getCallableData(mixed $callable): array
             $data['type'] = 'closure';
 
             $r = new \ReflectionFunction($callable);
-            if (str_contains($r->name, '{closure}')) {
+            if ($r->isAnonymous()) {
                 return $data;
             }
             $data['name'] = $r->name;

Console/Descriptor/MarkdownDescriptor.php

@@ -403,7 +403,7 @@ protected function describeCallable(mixed $callable, array $options = []): void
             $string .= "\n- Type: `closure`";
 
             $r = new \ReflectionFunction($callable);
-            if (str_contains($r->name, '{closure}')) {
+            if ($r->isAnonymous()) {
                 $this->write($string."\n");
 
                 return;

Console/Descriptor/TextDescriptor.php

@@ -649,7 +649,7 @@ private function formatCallable(mixed $callable): string
 
         if ($callable instanceof \Closure) {
             $r = new \ReflectionFunction($callable);
-            if (str_contains($r->name, '{closure}')) {
+            if ($r->isAnonymous()) {
                 return 'Closure()';
             }
             if ($class = $r->getClosureCalledClass()) {

Console/Descriptor/XmlDescriptor.php

@@ -581,7 +581,7 @@ private function getCallableDocument(mixed $callable): \DOMDocument
             $callableXML->setAttribute('type', 'closure');
 
             $r = new \ReflectionFunction($callable);
-            if (str_contains($r->name, '{closure}')) {
+            if ($r->isAnonymous()) {
                 return $dom;
             }
             $callableXML->setAttribute('name', $r->name);

Kernel/MicroKernelTrait.php

@@ -214,7 +214,7 @@ public function loadRoutes(LoaderInterface $loader): RouteCollection
 
             if (\is_array($controller) && [0, 1] === array_keys($controller) && $this === $controller[0]) {
                 $route->setDefault('_controller', ['kernel', $controller[1]]);
-            } elseif ($controller instanceof \Closure && $this === ($r = new \ReflectionFunction($controller))->getClosureThis() && !str_contains($r->name, '{closure}')) {
+            } elseif ($controller instanceof \Closure && $this === ($r = new \ReflectionFunction($controller))->getClosureThis() && !$r->isAnonymous()) {
                 $route->setDefault('_controller', ['kernel', $r->name]);
             }
         }