Add test cases for wrong named argument types on union type with different parameter order

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: phpstan-bot

tests/PHPStan/Rules/Methods/CallMethodsRuleTest.php

@@ -4112,7 +4112,24 @@ public function testBug14661(): void
 		$this->checkThisOnly = false;
 		$this->checkNullables = true;
 		$this->checkUnionTypes = true;
-		$this->analyse([__DIR__ . '/data/bug-14661.php'], []);
+		$this->analyse([__DIR__ . '/data/bug-14661.php'], [
+			[
+				'Parameter $a of method Bug14661\A::differentTypes() expects int, string given.',
+				76,
+			],
+			[
+				'Parameter $b of method Bug14661\A::differentTypes() expects string, int given.',
+				76,
+			],
+			[
+				'Parameter $a of method Bug14661\A::differentTypes() expects int, string given.',
+				77,
+			],
+			[
+				'Parameter $b of method Bug14661\A::differentTypes() expects string, int given.',
+				77,
+			],
+		]);
 	}
 
 }

tests/PHPStan/Rules/Methods/data/bug-14661.php

@@ -71,6 +71,12 @@ function differentTypes(A|B $obj): void
     $obj->differentTypes(b: 'hello', a: 1);
 }
 
+function differentTypesErrors(A|B $obj): void
+{
+    $obj->differentTypes(a: 'hello', b: 1);
+    $obj->differentTypes(b: 1, a: 'hello');
+}
+
 function threeWayUnion(A|B|C $obj): void
 {
     $obj->mixedOrder(target: 'value');