bug #36891 Address deprecation of ReflectionType::getClass() (derrabus)

This PR was merged into the 3.4 branch.

Discussion
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Address deprecation of ReflectionType::getClass()

| Q             | A
| ------------- | ---
| Branch?       | 3.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Tickets       | #36872
| License       | MIT
| Doc PR        | N/A

Calling `ReflectionType::getClass()` will trigger a deprecation warning on php 8. This PR switches to `getType()` if available.

Commits
-------

53b1677a4e Address deprecation of ReflectionType::getClass().

Author: nicolas-grekas

Controller/ControllerResolver.php

@@ -136,7 +136,7 @@ protected function doGetArguments(Request $request, $controller, array $paramete
                 } else {
                     $arguments[] = $attributes[$param->name];
                 }
-            } elseif ($param->getClass() && $param->getClass()->isInstance($request)) {
+            } elseif ($this->typeMatchesRequestClass($param, $request)) {
                 $arguments[] = $request;
             } elseif ($param->isDefaultValueAvailable()) {
                 $arguments[] = $param->getDefaultValue();
@@ -260,4 +260,22 @@ private function getControllerError($callable)
 
         return $message;
     }
+
+    /**
+     * @return bool
+     */
+    private function typeMatchesRequestClass(\ReflectionParameter $param, Request $request)
+    {
+        if (!method_exists($param, 'getType')) {
+            return $param->getClass() && $param->getClass()->isInstance($request);
+        }
+
+        if (!($type = $param->getType()) || $type->isBuiltin()) {
+            return false;
+        }
+
+        $class = new \ReflectionClass(method_exists($type, 'getName') ? $type->getName() : (string) $type);
+
+        return $class && $class->isInstance($request);
+    }
 }