Library syntax updates. Covers all remaining files in ~/tests aprt from ~/tests/language and ~/test…

tests/benchmark_smoke/smoketest_lib.dart

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-#library('smoketest_lib');
+library smoketest_lib;
 
-#import("benchmark_lib.dart");
-#import("dart:html");
+import 'benchmark_lib.dart';
+import 'dart:html';
 
 /** 
  * This is a sample no-op benchmark to ensure that dart2js has not dramatically
  * broken Firefox.
  */
 class Smoketest extends BenchmarkBase {
 
   const Smoketest() : super("Smoketest");
 
   void run() {}
 
   static void main() {
     new Smoketest().report();
   }
 
   static void log(String str) {
     print(str);
   }
 }