* Bump to Dart SDK 1.24.0-dev.6.7.

* nits and fixes

* Remove comments unrelated to plugin example app

* Review feedback

This reverts commit c8e4cbf2.

* Check for initialRoute before Navigator.defaultRouteName

* Default initialRoute to Navigator.defaultRouteName

* Take suggestions from code review

* Add test for old and new routes behavior

* Revert "Add test for old and new routes behavior"

This reverts commit 282fb64b165ed532583e9a5d2e4debe29469fba4.

* Retry: without dartfmt, with dartanalyzer

* Rename tests, check the routes are taken

* Fix flutter analyze --flutter-repo warnings

* Add test for initial vs default route

* Update test and fix analyzer warnings

* Add test for initial route only being used initially

This picks up the latest engine build, built with ios_deployment_target
set to iOS 8 (changed from iOS 7).

* Before tests

* Add the part to trust the cert on the device

* flip the error checks since some are more specific and are more actionable

* add tests

* review

Fixes https://github.com/flutter/flutter/issues/4647

Fixes bot breakage resulting from commit
7d713263 (#10540).

https://github.com/flutter/flutter/issues/10072

closes https://github.com/flutter/flutter/issues/10534

It's redundant as iOS accessibility automatically includes this action on the clock in the status bar.

Closes https://github.com/flutter/flutter/issues/10529

Via https://stackoverflow.com/a/25518345/39827

Fixes #10350

Fixes #10077

Should be reverted when https://github.com/flutter/flutter/issues/6577
is fixed.