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

tests/dom/dom_constructors_test.dart

Index: tests/dom/dom_constructors_test.dart
diff --git a/tests/dom/dom_constructors_test.dart b/tests/dom/dom_constructors_test.dart
deleted file mode 100644
index 87332350da9ccd800a051aa11b8cdab0d997a54a..0000000000000000000000000000000000000000
--- a/tests/dom/dom_constructors_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-#library('DOMConstructorsTest');
-#import('../../lib/unittest/unittest.dart');
-#import('../../lib/unittest/html_config.dart');
-#import('dart:html');
-
-main() {
-  useHtmlConfiguration();
-  test('FileReader', () {
-    FileReader fileReader = new FileReader();
-    Expect.equals(FileReader.EMPTY, fileReader.readyState);
-  });
-}