Added regression tests

Author: staabm

tests/PHPStan/Rules/Functions/CallToFunctionParametersRuleTest.php

@@ -2711,4 +2711,16 @@ public function testBug14012(): void
 		$this->analyse([__DIR__ . '/../Properties/data/bug-14012.php'], []);
 	}
 
+	public function testBug11534(): void
+	{
+		$this->checkExplicitMixed = true;
+		$this->checkImplicitMixed = true;
+		$this->analyse([__DIR__ . '/data/bug-11534.php'], [
+			[
+				'Parameter #2 $param2 of function Bug11534\hello expects int, mixed given.',
+				14
+			]
+		]);
+	}
+
 }

tests/PHPStan/Rules/Functions/data/bug-11534.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace Bug11534;
+
+function hello(int $param1, int $param2): void
+{
+}
+/** @param mixed[] $params */
+function world(array $params): void
+{
+	if (!is_int($params['param1'])) {
+		throw new \Exception();
+	}
+	hello($params['param1'], $params['param2']);
+}