LayoutTests/fast/selectors/malformed-has.html - WebKit - Git at Google

 <style>
 div:has { color: red; }
 </style>
 <div>This test passes if it doesn't crash.</div>

 <script>
 if (window.testRunner)
     testRunner.dumpAsText();
 </script>
	<style>
	div:has { color: red; }
	</style>
	<div>This test passes if it doesn't crash.</div>

	<script>
	if (window.testRunner)
	testRunner.dumpAsText();
	</script>