Add non regression test

Author: VincentLanglet

tests/PHPStan/Rules/Comparison/StrictComparisonOfDifferentTypesRuleTest.php

@@ -1009,6 +1009,11 @@ public function testBug11019(): void
 		$this->analyse([__DIR__ . '/data/bug-11019.php'], []);
 	}
 
+	public function testBug11485(): void
+	{
+		$this->analyse([__DIR__ . '/data/bug-11485.php'], []);
+	}
+
 	public function testBug12946(): void
 	{
 		$this->analyse([__DIR__ . '/data/bug-12946.php'], []);

tests/PHPStan/Rules/Comparison/data/bug-11485.php

@@ -0,0 +1,18 @@
+<?php declare(strict_types = 1);
+
+namespace Bug11485;
+
+class Foo {
+
+	public function bar(string $value, bool $strict = true): bool	{
+
+		$flags = $strict ? FILTER_NULL_ON_FAILURE : 0;
+		$result = filter_var($value, FILTER_VALIDATE_BOOLEAN, $flags);
+		if ($result === null) throw new \Exception("not a boolean");
+
+		$result = filter_var($value, FILTER_VALIDATE_BOOLEAN, FILTER_NULL_ON_FAILURE);
+		if ($result === null) throw new \Exception("not a boolean");
+
+		return $result;
+	}
+}