Enable linux desktop feature on dev channel

Cleanup fuchsia tests that failed under tester.

This reverts commit 2933e895.

This reverts commit 747fe345.

This reverts commit 59956617.

Due to a bug in analyzer [1], some unused imports are not reported when
multiple import directives share a prefix name, and one or more are unused.

[1] https://github.com/dart-lang/sdk/issues/38784

Fixes #59718

Update all versions, specifically dwds which has a hot restart fix

Re-land "Deprecate WhitelistingTextInputFormatter and BlacklistingTextInputFormatter (#59120)" (#59876)

This relands #59120, which was reverted in #59870.

Revert "Deprecate WhitelistingTextInputFormatter and BlacklistingTextInputFormatter (#59120)" (#59870)

This reverts commit 8665e138.

This reverts commit df02518d.

The previous call set the minimum size, not just the initial size.

This rolls the engine from:
965fbbed1776545ee681cb57f3fb1d0c2000bbcb to
b5f5e6332cb4987e9e38ffaa267733ec0a8705ba. A Dart SDK roll in this range
changed the format of the compileExpression RPC VMService endpoint,
necessitating a tool patch.

In google3, the Linux device is always available, and it has confused
people who run the Flutter doctor and see
"• Linux • Linux • linux-x64 • Linux" listed.

Rename the Linux device name to "Linux desktop" and the device ID to
be "linux". Make similar changes to the Windows and macOS
devices for consistency.  This is also  consistent with the web
devices.

The device ID change shouldn't be break -d usage since that does a
case-insensitive prefix match.

Revert "flutter.gradle: collect list of Android plugins from .flutter-plugins-dependencies (#59294)" (#59810)

This reverts commit 947b48e0.

On Windows, Process.run assumes the output uses the system codepage by default. This allows specifying it in our wrapper, and sets the encoding for vswhere to UTF-8 since we're passing a flag that forces it to use UTF-8 output.

Fixes #53515

This makes the flutter and dart scripts invoke their batch file equivalents if running under MINGW (i.e. git-bash) on Windows.

This allows for proper locking, and makes sure that people aren't using two different (and non-mutally-aware) locking systems when running flutter on Windows.

I also fixed a couple of places where we look for MINGW32, which fails under MINGW64. It just looks for MINGW now.

Some of the null-safety commands were missing - plumb them through. Ensure that verbose mode shows their output, and clean up the messaging around sound-null-safety.

Fixes #59769

Adds a test that validate each of the null safety supporting build commands has everything plumbed through.

The addition of the non-optional parent logger broke the google3 roll. Make it optional so we can roll

The tool needs to start outputing trace text to stderr to avoid breaking machine mode. This test is bogus, and should use the exit code.

https://github.com/dart-lang/coverage - 0.14.0 added the ability to be able to ignore coverage depending on comments.

// coverage:ignore-line to ignore one line.
// coverage:ignore-start and // coverage:ignore-end to ignore range of lines inclusive.
// coverage:ignore-file to ignore the whole file.

Refactors KernelCompiler and ResidentCompiler to no longer use globals (except as a fallback for g3 migration). Improves the compilation error when running flutter test on a package without a flutter_test dependency.

Updates machine mode to output trace text to stderr