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.
* Rename metrics, add `Time` suffix to all so that they are
more consistent
* iOS does not give us `gc` metrics, so they should not be reported
* Rename `scriptMicroAvg` into `microScriptTimeAvg`
* Rename previous `script` metric into `pureScriptTime` metric,
and keep `scriptTime` metric as the overall time, so that we still
have a shared metric across devices independent of the supported
browser features
* `microScriptTimeAvg` is now based on overall `scriptTime`, including
gc and render time.
* Move more shared DI tokens into `common_options` (previously
`sample_options`).
Closes#930
