Partial support for new getters/setters declaration.

TBR=blois@google.com, vsm@google.com

Review URL: https://codereview.chromium.org//16636002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@23742 260f80e4-7a28-3924-810f-c04153c831b5
4 files changed