Restructure pkg/unittest and pkg/webdriver to follow the pub conventions.

tests/isolate/isolate_complex_messages_test.dart

 // Copyright (c) 2012, 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.
 
 // Dart test program for testing isolate communication with
 // complex messages.
 
-#library('IsolateComplexMessagesTest');
-#import('dart:isolate');
-#import('../../pkg/unittest/unittest.dart');
+library IsolateComplexMessagesTest;
+import 'dart:isolate';
+import '../../pkg/unittest/lib/unittest.dart';
 
 main() {
   test("complex messages are serialized correctly", () {
     SendPort remote = spawnFunction(logMessages);
     remote.send(1, null);
     remote.send("Hello", null);
     remote.send("World", null);
     remote.send(const [null, 1, 2, 3, 4], null);
     remote.send(const [1, 2.0, true, false, 0xffffffffff], null);
     remote.send(const ["Hello", "World", 0xffffffffff], null);
     // Shutdown the LogRunner.
     remote.call(-1).then(expectAsync1((int message) {
-      Expect.equals(6, message);
+      expect(message, 6);
     }));
   });
 }
 
 
 void logMessages() {
   int count = 0;
 
   port.receive((var message, SendPort replyTo) {
     if (message == -1) {
       port.close();
       replyTo.send(count, null);
     } else {
       switch (count) {
         case 0:
-          Expect.equals(1, message);
+          expect(message, 1);
           break;
         case 1:
-          Expect.equals("Hello", message);
+          expect(message, "Hello");
           break;
         case 2:
-          Expect.equals("World", message);
+          expect(message, "World");
           break;
         case 3:
-          Expect.equals(5, message.length);
-          Expect.equals(null, message[0]);
-          Expect.equals(1, message[1]);
-          Expect.equals(2, message[2]);
-          Expect.equals(3, message[3]);
-          Expect.equals(4, message[4]);
+          expect(message.length, 5);
+          expect(message[0], null);
+          expect(message[1], 1);
+          expect(message[2], 2);
+          expect(message[3], 3);
+          expect(message[4], 4);
           break;
         case 4:
-          Expect.equals(5, message.length);
-          Expect.equals(1, message[0]);
-          Expect.equals(2.0, message[1]);
-          Expect.equals(true, message[2]);
-          Expect.equals(false, message[3]);
-          Expect.equals(0xffffffffff, message[4]);
+          expect(message.length, 5);
+          expect(message[0], 1);
+          expect(message[1], 2.0);
+          expect(message[2], true);
+          expect(message[3], false);
+          expect(message[4], 0xffffffffff);
           break;
         case 5:
-          Expect.equals(3, message.length);
-          Expect.equals("Hello", message[0]);
-          Expect.equals("World", message[1]);
-          Expect.equals(0xffffffffff, message[2]);
+          expect(message.length, 3);
+          expect(message[0], "Hello");
+          expect(message[1], "World");
+          expect(message[2], 0xffffffffff);
           break;
       }
       count++;
     }
   });
 }