fix: Avoid implicit null argument for php 8.4

Author: icanhazstring

.github/workflows/validate-code.yml

@@ -37,7 +37,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        php: [ "8.1" ]
+        php: [ "8.1", "8.2", "8.3", "8.4" ]
         os: [ "ubuntu-latest" ]
     steps:
       - name: Checkout

src/Parser/PHP/Strategy/AnnotationStrategy.php

@@ -37,7 +37,7 @@ final class AnnotationStrategy implements StrategyInterface
     public function __construct(
         ConstExprParser $constExprParser,
         Lexer $lexer,
-        ParserConfig $parserConfig = null
+        ?ParserConfig $parserConfig = null
     ) {
         $this->lexer = $lexer;
         if ($parserConfig !== null) {

tests/Integration/AbstractIntegrationTestCase.php

@@ -50,8 +50,8 @@ private function loadVendorPackage(string $cwd, string $packageName): PackageInt
      */
     protected function loadDefinedFileSymbols(
         string $baseDir,
-        array $autoloadTypes = null,
-        string $packageName = null
+        ?array $autoloadTypes = null,
+        ?string $packageName = null
     ): array {
         if ($packageName === null) {
             $package = $this->loadPackage($baseDir);
@@ -86,7 +86,7 @@ protected function loadDefinedFileSymbols(
      * @return array<SymbolInterface>
      * @param list<string> $excludedDirs
      */
-    protected function loadConsumedFileSymbols(string $baseDir, array $autoloadTypes = null, array $excludedDirs = []): array
+    protected function loadConsumedFileSymbols(string $baseDir, ?array $autoloadTypes = null, array $excludedDirs = []): array
     {
         $rootPackage = $this->loadPackage($baseDir);