Regression test for bug 319384, attempt to catch conversion error

js/tests/js1_5/Regress/regress-319384.js

@@ -46,8 +46,14 @@ printStatus (summary);
 printStatus('This test only runs in the browser');
 
 if (typeof clearTimeout === 'function')
+{
+  try
   {
     clearTimeout('foo');
   }
+  catch(ex)
+  {
+  }
+}
   
 reportCompare(expect, actual, summary);