add phpstan github action

.github/workflows/main.yml

@@ -85,3 +85,25 @@ jobs:
         run: "composer update --no-progress --prefer-dist"
       - name: "Tests"
         run: "test_old/run-php-src.sh 8.1.6"
+  phpstan:
+    runs-on: "ubuntu-latest"
+    name: "PHP ${{ matrix.php-version }} PHPStan"
+    strategy:
+      matrix:
+        php-version:
+          - "8.2"
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v2"
+      - name: "Install PHP"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          coverage: "none"
+          php-version: "${{ matrix.php-version }}"
+          tools: composer:v2
+      - name: "Install dependencies"
+        run: | 
+          composer global require phpstan/phpstan:1.9.3
+          echo "$(composer global config bin-dir --absolute --quiet)" >> $GITHUB_PATH
+      - name: "PHPStan"
+        run: "phpstan"

lib/PhpParser/Node/Stmt/EnumCase.php

@@ -16,7 +16,7 @@ class EnumCase extends Node\Stmt {
     /**
      * @param string|Node\Identifier    $name       Enum case name
      * @param Node\Expr|null            $expr       Enum case expression
-     * @param AttributeGroup[]          $attrGroups PHP attribute groups
+     * @param list<AttributeGroup>          $attrGroups PHP attribute groups
      * @param array<string, mixed> $attributes Additional attributes
      */
     public function __construct($name, ?Node\Expr $expr = null, array $attrGroups = [], array $attributes = []) {

phpstan-baseline.neon

@@ -245,11 +245,6 @@ parameters:
 			count: 1
 			path: lib/PhpParser/ParserAbstract.php
 
-		-
-			message: "#^Property PhpParser\\\\ParserAbstract\\:\\:\\$createdArrays \\(SplObjectStorage\\<PhpParser\\\\Node\\\\Expr\\\\Array_, null\\>\\|null\\) does not accept SplObjectStorage\\<object, mixed\\>\\.$#"
-			count: 1
-			path: lib/PhpParser/ParserAbstract.php
-
 		-
 			message: "#^Unary operation \"\\+\" on string results in an error\\.$#"
 			count: 1