Use Date.getTime instead of Date.getMilliseconds in dart:js.

tests/lib/lib.status

Index: tests/lib/lib.status
diff --git a/tests/lib/lib.status b/tests/lib/lib.status
index a09fb5c3f1747adb0e3639a065523be27e8c8b17..72847d813083567081160a7cd47db02da9cca5dd 100644
--- a/tests/lib/lib.status
+++ b/tests/lib/lib.status
@@ -173,6 +173,11 @@ convert/utf85_test: Slow, Pass
 async/timer_not_available_test: Fail, OK # only meant to test when there is no way to
                                          # implement timer (currently only in d8)
 
+# 'js' tests import the dart:js library, so they only make sense in
+# a browser environment.
+[ $runtime == vm ]

[kasperl, 2014/02/27 14:58:59]

What if runtime is d8?

[floitsch, 2014/02/27 15:02:44]

I had to ask Rico, too.
Dart2js is invoked with '--allow-mock-compilation' flag. This means that
everything is compiled but not executed, when dart:html (or dart:io) is
imported.
And dart:js imports dart:html.

+js/*: Skip
+
 [ $compiler == dart2js && $minified ]
 mirrors/intercepted_superclass_test: RuntimeError # Issue 16804
 mirrors/null_test/00: RuntimeError # Issue 16804. Please remove the multi-test comments when this test starts succeeding.