Configure GitHub action to e2e test both Nikic and PHPStan parsers.

Resolve Psalm issues.

.github/workflows/test.yml

@@ -78,6 +78,7 @@ jobs:
       matrix:
         os: [ubuntu-22.04]
         php-version: [8.1, 8.2, 8.3]
+        phpstan_parser: [true, false]
 
     steps:
       - name: "Checkout"
@@ -108,5 +109,15 @@ jobs:
       - name: "Install dependencies with composer"
         run: make composer-install
 
+      - name: Configure PhpStan Parser in 'deptrac.yaml'
+        if: matrix.phpstan_parser == 'false'
+        run: |
+          sed -i 's/phpstan_parser: true/phpstan_parser: false/' deptrac.yaml
+
+      - name: Configure PhpStan Parser in 'deptrac.config.php'
+        if: matrix.phpstan_parser == 'false'
+        run: |
+          sed -i 's/phpstanParser: true/phpstanParser: false/' deptrac.config.php
+
       - name: "Run deptrac"
         run: make deptrac

src/Core/Ast/Parser/DelegatingParser.php

@@ -4,6 +4,7 @@
 
 namespace Qossmic\Deptrac\Core\Ast\Parser;
 
+use PhpParser\NodeTraverser;
 use Qossmic\Deptrac\Core\Ast\AstMap\File\FileReference;
 use Qossmic\Deptrac\Core\Ast\Parser\NikicPhpParser\NikicPhpParser;
 use Qossmic\Deptrac\Core\Ast\Parser\PhpStanParser\PhpStanParser;
@@ -17,7 +18,9 @@ public function __construct(
         private readonly array $featureFlags,
         private readonly NikicPhpParser $nikicPhpParser,
         private readonly PhpStanParser $phpStanParser,
-    ) {}
+    ) {
+        $this->traverser = new NodeTraverser();
+    }
 
     protected function loadNodesFromFile(string $filepath): array
     {