Address deprecation of ReflectionType::getClass().

Author: derrabus

Compiler/AutowirePass.php

@@ -525,7 +525,16 @@ private static function getResourceMetadataForMethod(\ReflectionMethod $method)
         $methodArgumentsMetadata = [];
         foreach ($method->getParameters() as $parameter) {
             try {
-                $class = $parameter->getClass();
+                if (method_exists($parameter, 'getType')) {
+                    $type = $parameter->getType();
+                    if ($type && !$type->isBuiltin()) {
+                        $class = new \ReflectionClass(method_exists($type, 'getName') ? $type->getName() : (string) $type);
+                    } else {
+                        $class = null;
+                    }
+                } else {
+                    $class = $parameter->getClass();
+                }
             } catch (\ReflectionException $e) {
                 // type-hint is against a non-existent class
                 $class = false;