In web debug mode, infer sound null safety by default. When sound null safety is enabled, provide a separate dill and precompiled Dart SDK. Release builds do not need this setting since we run dart2js from source.

Fixes #59873

The flutter daemon unconditionally waits for the appFinished signal, even if startup failed. Ensure this future is correctly completed if there is a failure in ResidentRunner.run and not just ResidentRunner.attach. Adds regression tests for run release, debug, debug web, and release web. Adds missing try catch in cold runner startup.

Manually tested with release/debug on Android and release/debug on web.

Fixes #60613

This amends #57588 by adding code that also handles the zero license case, and adds translation strings for that.

Use tester (disclaimer, written by me) to unit test the flutter tools general shard. Since these tests are designed to be hermetic, the single compilation/single isolate model offers a tremendous speedup over the default pub run test workflow. On previous linux shard, test execution alone took 10:30, while now it takes only 1:30.

fc7257752 Roll Skia from f123f06aabd6 to 49b30f451e68 (31 revisions) (flutter/engine#19391) (#60567)

This reverts commit 09cca73a.

* Simplify the animation control

* Using AnimatedBuilder

* 1ae95f795 Roll Skia from 318afe66e699 to 63a0a758ce14 (4 revisions) (flutter/engine#19335)

* b1b946904 Manual roll of Dart e24733ebd1...63cf56d925 (flutter/engine#19337)

* de68a7f3b Roll Skia from 63a0a758ce14 to f123f06aabd6 (9 revisions) (flutter/engine#19336)

* 220a83102 Move fuchsia/scenic integration behind #define (flutter/engine#19003)

* de74f8a58 migrate web engine implementation to null-safe Dart (flutter/engine#19172)

* 4cd3ec077 Fix broken mac/fuchsia compiles (flutter/engine#19339)

* 77e9f94b0 Roll Dart SDK from e24733ebd16c to 243ad5427564 (5 revisions) (flutter/engine#19338)

* 4333fc312 Roll Dart SDK from 243ad5427564 to 7fc61e77e225 (5 revisions) (flutter/engine#19342)

* b3cfbd230 Roll Fuchsia Mac SDK from YGK_M... to l3tHO... (flutter/engine#19343)

* a28b7f0f3 Implement onDisplayPlatformView (flutter/engine#19344)

* 1a4f38ff4 Roll Dart SDK from 7fc61e77e225 to 871f0ee31eb0 (4 revisions) (flutter/engine#19346)

* 3d61564ac Roll Fuchsia Linux SDK from _d0dW... to Y_dK2... (flutter/engine#19347)

* 727a38d8b Roll Fuchsia Mac SDK from l3tHO... to SuveI... (flutter/engine#19348)

* ccfa0e79e Roll Fuchsia Linux SDK from Y_dK2... to lgSTC... (flutter/engine#19349)

* 2ff740e9f Roll Dart SDK from 871f0ee31eb0 to f91547d6dd45 (1 revision) (flutter/engine#19350)

* 692dfb3fc update compilation rules for null-safety (flutter/engine#19386)

* 729ca5ee6 Roll Fuchsia Linux SDK from lgSTC... to ScRia... (flutter/engine#19389)

Remove unnecessary use of globals from base tests, and an android test. This changes the test to avoid bouncing through the global getters, which can lead to incorrectly cached zone values. Switches the memory filesystem implementation to the test implementation

This reverts commit 32000db5.

This reverts commit 1e843bb6.

https://github.com/flutter/gallery/commit/0c5ec2f285c1ec30b2ed15194bc8de755654a590 does not live on any branch.

This makes `pub get` in the macrobenchmarks folder.

```
$ git rev-list --max-count=100 0c5ec2f285c1ec30b2ed15194bc8de755654a590
fatal: bad object 0c5ec2f285c1ec30b2ed15194bc8de755654a590
```

Updated to the same commit on the master branch: https://github.com/flutter/gallery/commit/d00362e6bdd0f9b30bba337c358b9e4a6e4ca950.

The gallery repository history has been rewritten (see flutter/gallery#87), so updating to HEAD commit

* Add widget construction benchmark

* Add to device lab

Last batch of test fixes for general shard.