RuntimeSourceFilname: fix detection, add test - fix code coverage

Author: forrest79

tests/RuntimeTest.php

@@ -192,11 +192,9 @@ private static function testBasicTypes(): void
 		assert(!TypeValidator::isType([], 'object'));
 		assert(TypeValidator::isType(new \stdClass(), '\stdClass'));
 		assert(TypeValidator::isType(new self(), 'RuntimeTest'));
-		assert(TypeValidator::isType(new PHPStanTest(), 'PHPStanTest'));
 
 		// object with is_type() global function
 		assert(is_type(new self(), 'RuntimeTest'));
-		assert(is_type(new PHPStanTest(), 'PHPStanTest'));
 
 		// mixed / non-empty-mixed
 		assert(TypeValidator::isType('a', 'mixed'));