Modified unittest to use new argument syntax.

tests/html/indexeddb_4_test.dart

 #library('IndexedDB4Test');
 #import('../../pkg/unittest/unittest.dart');
 #import('../../pkg/unittest/html_config.dart');
 #import('dart:html');
 
 // Test for IDBKeyRange and IDBCursor.
 
 const String DB_NAME = 'Test';
 const String STORE_NAME = 'TEST';
 const int VERSION = 1;
 
 class Test {
   fail(message) => (e) {
     guardAsync(() {
-      Expect.fail('IndexedDB failure: $message');
+      expect(false, isTrue, reason: 'IndexedDB failure: $message');
     });
   };
 
   _createObjectStore(db) {
     try {
       // Nuke object store if it already exists.
       db.deleteObjectStore(STORE_NAME);
     }
     on IDBDatabaseException catch(e) { }  // Chrome
     on DOMException catch(e) { }          // Firefox
@@ skipping 66 matching lines @@
     IDBRequest cursorRequest = objectStore.openCursor(range);
     int itemCount = 0;
     int firstKey = null;
     int lastKey = null;
     cursorRequest.on.success.add(expectAsync1((e) {
       var cursor = e.target.result;
       if (cursor != null) {
         if (firstKey == null) firstKey = cursor.key;
         lastKey = cursor.key;
         itemCount += 1;
-        Expect.equals('Item ${cursor.key}', cursor.value);
+        expect(cursor.value, 'Item ${cursor.key}');
         cursor.continueFunction();
       } else {
         // Done
-        Expect.equals(expectedFirst, firstKey);
-        Expect.equals(expectedLast, lastKey);
+        expect(firstKey, expectedFirst);
+        expect(lastKey, expectedLast);
         if (expectedFirst == null) {
-          Expect.equals(0, itemCount);
+          expect(itemCount, isZero);
         } else {
-          Expect.equals(expectedLast - expectedFirst + 1, itemCount);
+          expect(itemCount, expectedLast - expectedFirst + 1);
         }
       }
     },
     count: 1 + ((expectedFirst == null) ?
            0 : (expectedLast - expectedFirst + 1))));
     cursorRequest.on.error.add(fail('openCursor'));
   }
 
   only1() => testRange(new IDBKeyRange.only(55), 55, 55);
   only2() => testRange(new IDBKeyRange.only(100), null, null);
@@ skipping 49 matching lines @@
   test('upper1', test_.upper1);
   test('upper2', test_.upper2);
   test('upper3', test_.upper3);
 
   test('bound1', test_.bound1);
   test('bound2', test_.bound2);
   test('bound3', test_.bound3);
   test('bound4', test_.bound4);
   test('bound5', test_.bound5);
 }