angular/angular.dart — pull request #625 by mhevery (2014-02-26 06:41:55+00:00)
Title: feat(block): Chain ElementProbe parents; add to shadowRoot

This allows one to retrieve ElementProbe from any element including
a shadowRoot. The ElementProbe contains element, injector, and scope.
The added benefit is that by waling the ElementProbe parent one can
get the parent element of a shadow DOM.