* relax timeouts for some service protocol calls

* remove 'note that' text

Previously, it was possible for the test harness to bail
and the test runner to complete before the platform plugin
triggered the collection of coverage data. This fixes the
race condition such that the pending coverage collection
task is recorded immediately after starting the process.

* Add missing IJ metadata

* Updates

* Add modules metadata

This widget isn't tested and isn't used by Fuchsia or internally by Google. The
Hero widget is a better way of generating hero animations.

This patch adds tests for radio buttons, the date picker, as well as a
number of other classes.

We were checking similar things in two places. Now we check everything in one
place.

Also, fix a few minor bugs found by the test.

* Add example IntelliJ metadata (flutter-intellij#607).

Ensures example projects open cleanly out-of-the-box w/ the Flutter Plugin.

See: https://github.com/flutter/flutter-intellij/issues/607.

* Fixed IML files.

Previously we asserted that the element was not in the dirty list, but there
are scenarios where the element can be in the dirty list already. This patch
makes markNeedsBuild handle those cases by simply resorting the dirty list.

Fixes #6119

The indexes passed to paragraph.getBoxesForRange are based on UTF-16 code
units.  If the caret is at a character that is encoded as multiple code units,
then the start and end indexes should be adjusted accordingly.

- output single-line JSON because iOS 9.x cannot output more than one line
- move the workaround for #7433 into LiveTestWidgetsFlutterBinding so that it works in all cases (e.g. animation_bench.dart on iOS)

* ignore exceptions from stdin.lineMode

* only catch IOException

It is now handled at a higher level for all commands.

Now that dart-lang/dartdoc#1236 is fixed.

This API was deprecated. Clients should use PlatformMessages instead.

As of Dart SDK 1.22.0-dev.5.0, `Process.exitCode` is no longer
mutable (that SDK version picks up https://github.com/dart-lang/sdk/commit/e5a16b1ca56414af3008afb8833660f95a9d06da).
This change allows the tools code to pass analysis in sdk versions both
before and after that change, to allow for analysis against both the host and
target sdks.

Also, make the exception handling for global key listeners slightly more
robust.

This reverts commit ef25a203 to unbreak the build.

* Bump Dart SDK to 1.22.0-dev.5.0.

* Suppress spurious `FutureOr` type warning.

* Fixed linter dep post merge.

* Formatting tweaks.

Change `Flexible`'s default `FlexFit`

Previously, `Flexible` defaulted to `FlexFit.tight`, which forced the child to
expand to fill the available space. Now, `Flexible` defaults to
`FlexFit.loose`, which does not force the child to expand to fill the available
space.

If you want the child to expand to fill the available space, consider using
`Expanded` instead.

Fixes #5169

We now produce a more reasonable error message when we're missing the
flutter_test dependency in a test. Also, remove the flutter_tools stack traces
when the engine dies.

Fixes #6187

Fixes #7413

Each stack trace will yield many async task stacks for every write request
that is in flight.  If the device side is unresponsive and all writes are
failing, then this can generate an overwhelming amount of logs.

This patch improves test coverage for a number of files that had low
coverage. This patch also fixes a few minor bugs found by these tests.

- [x] Wire up dependency checker and plumb flags down to the right place

Fixes #7014

Fixes #7375