Do report StaticWarningCode.FINAL_NOT_INITIALIZED
Do report StaticWarningCode.FINAL_NOT_INITIALIZED

Mostly just enable the implementation done by Jaime and some clean up.

There are many positives in dart2js, in HTML related libraries.
It seems that the most or all of these positives are in the classes with native implementation.
So, may be worth to remember that class has native implementation and don't report this problem.

R=brianwilkerson@google.com
BUG=

Review URL: https://codereview.chromium.org//18051016

git-svn-id: c93d8a2297af3b929165606efe145742a534bc71@24815 260f80e4-7a28-3924-810f-c04153c831b5

dart-lang/sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dartino/dart-sdk,dart-archive/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dart-lang/sdk,dartino/dart-sdk,dartino/dart-sdk,dartino/dart-sdk,dartino/dart-sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dart-lang/sdk,dartino/dart-sdk,dart-lang/sdk,dartino/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dartino/dart-sdk,dart-lang/sdk,dartino/dart-sdk