Support psalm 4.9 (#198)

Author: seferov

composer.json

@@ -13,7 +13,7 @@
         "php": "^7.1 || ^8.0",
         "ext-simplexml": "*",
         "symfony/framework-bundle": "^3.0 || ^4.0 || ^5.0",
-        "vimeo/psalm": "^4.8"
+        "vimeo/psalm": "^4.9"
     },
     "require-dev": {
         "symfony/form": "^4.0 || ^5.0",

tests/acceptance/acceptance/ParameterBag.feature

@@ -1,4 +1,4 @@
-@symfony-common
+@symfony-4 @symfony-5
 Feature: ParameterBag
 
   Background:
@@ -69,7 +69,6 @@ Feature: ParameterBag
       """
     When I run Psalm
     Then I see these errors
-      | Type            | Message                                                                      |
-      | MixedAssignment | Unable to determine the type that $nonExistentParameter is being assigned to |
-      | Trace           | $nonExistentParameter: mixed                                                 |
+      | Type            | Message                                                      |
+      | Trace           | $nonExistentParameter: array<array-key, mixed>\|null\|scalar |
     And I see no other errors

tests/acceptance/acceptance/console/ConsoleOption.feature

@@ -1,4 +1,4 @@
-@symfony-common
+@symfony-4 @symfony-5
 Feature: ConsoleOption
 
   Background:
@@ -284,15 +284,16 @@ Feature: ConsoleOption
         public function execute(InputInterface $input, OutputInterface $output): int
         {
           $optionName = 'foo';
-          $string1 = $input->getOption($optionName);
-          $output->writeLn(sprintf('%s', $string1));
+          /** @psalm-trace $option */
+          $option = $input->getOption($optionName);
 
           return 0;
         }
       }
       """
     When I run Psalm
     Then I see these errors
-      | Type                    | Message                                                                                                                         |
-      | PossiblyInvalidArgument | Argument 2 of sprintf expects float\|int\|string, possibly different type array<array-key, string>\|bool\|null\|string provided |
+      | Type            | Message                                                        |
+      | MixedAssignment | Unable to determine the type that $option is being assigned to |
+      | Trace           | $option: mixed                                                 |
     And I see no other errors