Spawned from a discussion in https://github.com/flutter/flutter-intellij/pull/1003

This reverts commit 5ed2984e.

* record doctor failures

* fully mock out analytics dependencies

* handle errors

* review notes

* Revert "Update reference to url_launcher plugin in Gallery pubspec (#9879)"

This reverts commit 96a04dea.

* Revert "Revert "Revert plugin use in gallery (#9838)" (#9877)"

This reverts commit ede72a80.

This reverts commit 96a04dea.

This reverts commit 4bbf158b.

This ensures that when someone opens the project using IDEA,
the Flutter plugin will find the location of the Flutter SDK
and run "flutter packages get".

* link more explicitly from route to navigator

* fix from review

This affects the Fuchsia build which will soon run analysis by default.

* Don't crash on `flutter create .`

Fixes #9828

* review comments

Builds on engine fixes to #9813

Also fixes #7366

Eagerly generate local.properties, and always update the flutter.sdk
setting in it, in case FLUTTER_ROOT has changed.

Fixes #8365.
Fixes #9716 - at least the specific issue reported. My Android Studio
still complains about Gradle versions - it ships with v3.2, but requires
v3.3...

Add a 'generate dependencies' task to the Gradle build, which checks if
the snapshot dependencies file exists, and runs an extra build before
the actual FlutterTask if it doesn't. This makes the first build slower,
but sub-sequent builds (without source changes) much faster.

Fixes #9717.

* Revert "add Podfile (#9835)"

This reverts commit 74e65675.

* Revert "update ref to url_launcher plugin in Flutter Gallery (#9833)"

This reverts commit 30c49781.

* Revert "Use url_launcher plugin in Flutter Gallery (#9751)"

This reverts commit 02dfd6be.

Eagerly initialize libnotify by accessing the current date. See dart-lang/sdk#29539 for details.

Fixes #9727.

Enable plugin infra for both iOS and Android post-#9791.

Enable plugin infra for both iOS and Android post-#9791.

Enable plugin infra for both iOS and Android post-#9791.