* Ensure build is done in incremental mode.

This allows for faster bootstrapping of the compiler from previously created dill file.

Fixes #107183

* Avoid initializeFromDill in aot mode

* Update tests

* Pass URI converter from context to DDS

* Match change that will be merged

* Revert SDK web change

Add `fromDirectional` factory to `RelativeRect` for when an app needs to consider both TextDirection.ltr and TextDirection.rtl.

```
RelativeRect.fromDirectional(
    textDirection: textDirection,
    start: 10.0,
    top: 20.0,
    end: 30.0,
    bottom: 40.0,
);
```

Addresses #107058.

The pubRoot directory interface is being changed to promote adding and removing directories

…ar mode (#107256)

* Fixed AnimatedSwitcher chain produced duplicates

* Fixed issue with global keys being copied

* trailing whitespace

* removed unused dependencies

* Fixed dependency loop

* Check for bad characters in path on Windows build

* Doc comments

* Fix formatting

* Commenting/formatting

* Link to issue in comment

* Comments, formatting

* Global var rename

…#107976)" (#108038)

This reverts commit 641f4e2.

#107918)

…#108032)

…be unflaky (#108031)

…nflaky (#108030)