* Fix anchors for GitHub

For some reason GitHub lowercases the anchor names so although these links all work in the local VS Code preview, the ones with capitals didn't work in the GitHub UI!

* Fix some typos

flutter/engine@c3976b3 Revert "Added IsolateNameServer functionality (#5410)"
flutter/engine@61a2d12 Added IsolateNameServer functionality
flutter/engine@412f8b8 Roll src/third_party/skia 8ea971bfefb6..bb9ee9b4aa7d (10 commits)
flutter/engine@3b1f381 Expose approximateBytesUsed for Picture
flutter/engine@a4c8e1f Roll src/third_party/skia 2a2f67592602..8ea971bfefb6 (5 commits)

* Roll the engine

flutter/engine@6b1b887 Roll the Dart VM.

flutter/engine@a328531 Roll src/third_party/skia 8e4d09ae7af1..2a2f67592602 (6 commits)
    flutter/engine@10850ea Roll src/third_party/skia 0e2608e84fe5..8e4d09ae7af1 (1 commits)
    flutter/engine@59a784d Roll src/third_party/skia 8c6b49718210..0e2608e84fe5 (1 commits)
    flutter/engine@c0ba226 Roll src/third_party/skia 5c12122ad91d..8c6b49718210 (1 commits)
    flutter/engine@be02d0c Revert "Eliminate support for Dart 1 (#5504)"
    flutter/engine@0ea93c3  Eliminate support for Dart 1
    flutter/engine@036443d Roll src/third_party/skia 36f0c41eafe9..5c12122ad91d (5 commits)
    flutter/engine@4c91156 Roll src/third_party/skia 46fbf8c97a13..36f0c41eafe9 (5 commits)
    flutter/engine@782e500 Roll src/third_party/skia 4c4650150d5f..46fbf8c97a13 (1 commits)
    flutter/engine@16ea70b Roll src/third_party/skia 27dddae3130c..4c4650150d5f (16 commits)

This works better for an add2app scenario.

This should reduce the number of flakes without actually increasing
the timeout, so we'll still find out quickly if a test is hanging.

The numbers here might need tweaking. Maybe the default two seconds is
too short for CI bots.

Now that Dart 1 is turned off, reapplying my change to turn on the prefer_generic_function_type_aliases analysis option, and fix all the typedefs to Dart 2 preferred syntax.

Also eliminated the unused analysis_options_repo.yaml file and turned on public_member_api_docs in analysys_options.yaml.

No logic changes, just changing the typedef syntax for all typedefs, and updating analysis options.

Notifies IDEs this is a test method, and helps e.g. the flutter plugin
recognize test methods and display them in the structure view in intellij.

* update tests for TextStyle changes in engine

* roll engine, support Foreground on TextStyle

* Support for saving Dart compilation trace on device

Fingerprinter.doesFingerprintMatch() now returns false rather than
throwing if a depfile is malformed.

* It's time to #deleteDart1 (#18293)

Eliminates support for Dart 1 in flutter_tools, and drops our Dart 1
benchmarks. All commands now run in Dart 1 mode only.

Eliminates --preview-dart-2 / --no-preview-dart-2 support.

* Fix indentation, remove no longer necessary .toList()

* Only push udpated kernel if >0 invalidated srcs

Several benchmarks started failing during kernel compile:
1. Timeouts:
   * commands_test
   * hot_mode_dev_cycle__benchmark
   * run_machine_concurrent_hot_reload
   * service_extensions_test

2. Kernel compiler crash:
   * hot_mode_dev_cycle_linux__benchmark
   * routing_test

3. Unexpected termination:
   * hot_mode_dev_cycle_win__benchmark

This reverts commit ed63e708.

Eliminates support for Dart 1 in flutter_tools, and drops our Dart 1
benchmarks. All commands now run in Dart 1 mode only.

Eliminates --preview-dart-2 / --no-preview-dart-2 support.

DevFS.update() returns the number of bytes synced from the host to the
target device. When running in Dart 2 mode, ensure that the size of the
kernel file is included in the count of bytes synced.

Iterates over a copy of the dirty entries list rather than the original,
in order to avoid the potential for a concurrent modification exception
when fileUris are removed/added later in the loop.

This occurs when non-asset URIs (Dart sources) are listed in the dirty
set when --preview-dart-2 is enabled (the default).

Thie field is never used outside of the class and has a private type,
making it impossible to subclass/mock.

Extracted a superclass from AnimatedWidgetBaseState that is called ImplicitlyAnimatedWidgetState. ImplicitlyAnimatedWidgetState implicitly animates, but it does not call setState() automatically. Subclasses must respond to animation changes themselves. This is a useful optimization for Widgets whose render objects listen to animations directly. (#18173)

Fixes #18145.

A bug in _RenderCustomClip was compaeing the type of oldClipper to
itself instead to the type of newClipper.

This was the root cause for the crash #14937 worked around.
This also reverts the workaround introduced in #14937.