Last batch of test fixes for general shard.

The global packages path could cause tests to fail when it would be overriden to unexpected (in test setup) values. Remove most usage and make it a configuration on buildInfo, along with most other build information. Cleanup the asset builder to require the .packages path and the resident runners to no longer require it, since they already have the information in build_info.

It needs to stick around for the fuchsia deps we do not control.

Filled #60232 for remaining work.

Revert "[flutter_tools] separate target platform, host platform, and architecutre (#60119)" (#60147)

This reverts commit 30d97d89.

separate target platform, host platform, and architecture

Updates the tooling to use the GTK embedding, rather than the GLFW embedding:
- Adds new requirements to `doctor`
- Updates the app and plugin templates to make GTK-based runners and plugins
- Stops downloading and installing the GLFW artifacts

Final part of #54860, other than cleanup.

Adds support for --bundle-sksl-path to windows, linux, macOS, and iOS.

Fixes #53115

update flutter_service_worker.js to NOTICES

Instead of targets/dart.dart -> targets/common.dart

Also combines experiments into extraGenSnapshot/ExtraFrontEndOptions. Allows providing --no-sound-null-safety to allow out of order migration and running.

* Revert "[flutter_tools] Put a heap size limit on the frontend_server (#58039)"

Work towards #16723

This is only safe to land after #58131 lands in google3. Only build NOTICES in asset manfiest, and load either LICENSE or NOTICES from pubspec dependencies.

Builds and bundles an 'app.so' containing AOT data, and downloads and packages the release/profile artifacts for those builds, rather than always using the debug artifacts.

Fixes https://github.com/flutter/flutter/issues/38477
Fixes https://github.com/flutter/flutter/issues/39664

Reland: #56167

To simplify development of the in-progress GTK embedding, which will
replace the GLFW embedding on Linux, add the GTK artifacts to the unpack
list. This means that until the transition, both the GLFW and GTK
artifacts will be unpacked.

Part of #54860

This reverts commit f865ac7e.

* [flutter_tools] integration l10n tool

* add runtime skip to build system

* Update build_system.dart

* add links to issues, comments

* Update packages/flutter_tools/test/general.shard/build_system/build_system_test.dart
Co-authored-by: Shi-Hao Hong <shihaohong@google.com>

* Update packages/flutter_tools/lib/src/build_system/targets/localizations.dart
Co-authored-by: Shi-Hao Hong <shihaohong@google.com>

* Update localizations.dart

* switch to gen_l10n localizations

* fix tests
Co-authored-by: Shi-Hao Hong <shihaohong@google.com>

Ensure iOS and android builds can be correctly cached. Use the performance-measurement-file to verify that all targets were skipped on the second invocation. This is only run on the flutter_gallery build.

Support bundling SkSL shaders into an android APK or appbundle via the --bundle-sksl-path command line options. If provided, these are validated for platform engine revision and then placed in flutter_assets/io.flutter.shaders.json

Fixes the performance issue with tree-shake-icons and filters to ttf mime type. Does not change default or error behavior.

- Update windows precache to include placeholder profile/release artifacts
- Update Linux and windows unpack to account for the cpp_client_wrapper code to live separate from the engine binaries
- Cleanup testing in unpack_linux and remove test cases that are covered in build_system_test.dart

Revert "[flutter_tools] default tree-shake-icons to enabled and improve performance (#54923)" (#55413)

This reverts commit 0b93a921.

This reverts commit b8bd09db.