Fixed test (shift operators throw Error)

tests/lang/operators/bitwiseShiftLeft_variationStr.phpt

@@ -19,7 +19,7 @@ foreach ($strVals as $strVal) {
 	  echo "--- testing: '$strVal' << '$otherVal' ---\n";
       try {
         var_dump(strVal<<$otherVal);
-      } catch (Exception $e) {
+      } catch (Throwable $e) {
         echo "Exception: " . $e->getMessage() . "\n";
       }
    }