These wrappers are not natively understood by
ts2dart. Removing them will improve Dart2JS
compilation due to fewer megamorphic calls to List
functions.
It also makes Angular code more succinct and
improves type safety in Angular due to better type
inference of the Array component type.
This change exposed several bugs in Angular.
In 'angular2/di' the symbol:
- Inject is a decorator
- InjectAnnotation is an annotation
Internally one an get a hold of annotations without *Annotations appened
(to make ts2dart work without workarounds) by importing from
'angular2/src/di/annotations_impl' instead of 'angular2/di'. This is
needed only for users that transpile through TS and through ts2dart.
Previously, getting testability was `window.angular2.getTestability`
This was because the plan was to export the API to the window as
angular2. However, the decision was changed to make this just `angular`
in https://github.com/angular/angular/commit/3177576ad6889fd7cb592d27ff0cd5c0d85bd9d6
To decouple testability from the rest of the Angular API, just make it
one function, `window.getAngularTestability`.
Martin Probst
Tobias Bosch
Kevin Moore
Rado Kirov
Julie Ralph
Marc Laval
Tim Blasi