Copy lib/dom tests that use dart:html to lib/html.

tests/dom/key_name_location_test.dart

-#library('KeyNameLocationTest');
-#import('../../lib/unittest/unittest.dart');
-#import('../../lib/unittest/html_config.dart');
-#import('dart:html');
-
-// Test for existence of some KeyName and KeyLocation constants.
-
-main() {
-
-  useHtmlConfiguration();
-
-  test('keyNames', () {
-      Expect.equals("DownLeft", KeyName.DOWN_LEFT);
-      Expect.equals("Fn", KeyName.FN);
-      Expect.equals("F1", KeyName.F1);
-      Expect.equals("Meta", KeyName.META);
-      Expect.equals("MediaNextTrack", KeyName.MEDIA_NEXT_TRACK);
-      Expect.equals("NumLock", KeyName.NUM_LOCK);
-      Expect.equals("PageDown", KeyName.PAGE_DOWN);
-      Expect.equals("DeadIota", KeyName.DEAD_IOTA);
-  });
-
-  test('keyLocations', () {
-      Expect.equals(0, KeyLocation.STANDARD);
-      Expect.equals(1, KeyLocation.LEFT);
-      Expect.equals(2, KeyLocation.RIGHT);
-      Expect.equals(3, KeyLocation.NUMPAD);
-      Expect.equals(4, KeyLocation.MOBILE);
-      Expect.equals(5, KeyLocation.JOYSTICK);
-  });
-}