Add more test for readonly property assignment

Author: takaram

tests/PHPStan/Rules/Properties/ReadOnlyPropertyAssignRuleTest.php

@@ -162,11 +162,23 @@ public function testBug11495(): void
 			$this->markTestSkipped('Test requires PHP 8.1.');
 		}
 
-		$errors = [];
 		if (PHP_VERSION_ID < 80300) {
-			$errors[] = [
-				'Readonly property Bug11495\HelloWorld::$foo is assigned outside of the constructor.',
-				17,
+			$errors = [
+				[
+					'Readonly property Bug11495\HelloWorld::$foo is assigned outside of the constructor.',
+					17,
+				],
+				[
+					'Readonly property Bug11495\HelloWorld::$foo is assigned outside of the constructor.',
+					20,
+				],
+			];
+		} else {
+			$errors = [
+				[
+					'Readonly property Bug11495\HelloWorld::$foo is not assigned on $this.',
+					20,
+				],
 			];
 		}
 

tests/PHPStan/Rules/Properties/data/bug-11495.php

@@ -15,6 +15,9 @@ public function __construct()
 	public function __clone()
 	{
 		$this->foo = 'baz';
+
+		$s = new self();
+		$s->foo = 'baz';
 	}
 
 	public function getFoo(): string