* allow flutter create to re-gen over an existing project

* add a regression test

* add a service extension for repaint rainbow

* review comments

* rename the --develop option to --debug

* fail if both --debug and --deploy are specified

Handy for testing against specific local SDK builds.

(Note that the option is hidden.)

* download android-arm-deploy

* wire up --deploy to android-arm-deploy

* fix interpolation

* use the new cache code to locate more artifacts

* add todo

* review comments

* find all repo packages

* .dartignore

update-packages only looks one level down, instead of
changing that, I'm just adding dev/benchmarks explicitly.

This will unbreak the bots which are dying trying to
flutter drive dev/benchmarks/complex_layout without
pub get having been run there.

@yjbanov @devoncarew

With the new dev build we've got the updated linter and so can use the `@optionalTypeArgs` annotation (in `meta 0.12.0`).

Bonus: this lets us clean up one more Regexp in the `analyze` command! :)

* run pub for analyze and test

* don't run pub when doing repo analysis

* move logic for when to run pub into the commands

* re-write ternary expression

When @jason-simons added the diagnostic server on Android this
happened to conflict with flutter drive's usage of 8182.

We really should fix both of these port users to be dynamic
but this fixes https://github.com/flutter/flutter/issues/3291
for now.

@yjbanov

* add a --deploy flag to build apk

* update command description

* use an enum instead of a bool param for build variants

* rename buildForDeploy flag to buildVariant

* review comments

As per https://github.com/dart-lang/sdk/issues/25723, moves last command-line flag to `.analysis_options`.

The push to dev-4 allows us to cleanup a few more bits:
  * `api_docs` lint message special casing (lint fixed)
  * `allowedIdentifiersPattern` (lint fixed)

* more terse flutter upgrade

* fix an issue when updating and the engine update code has changed

* call flutter precache; add a --no-color hidden option

* fix a lint related to getters/setters

* better messaging about windows support

* fix lints

* Add validity checks to create

* Adjust indent

* add a target for android-x64

* update armeabi-v7a to x86_64

Also, update hello_android to use the new Java class names.

* have flutter precache print if there's no work to do

* tweak precache

Do not check for an existing package map if a command is going to run "pub get" to update the package map (#3202)

Also remove a redundant check for the --pub option in the run command

This command explicitly populates the flutter tool's cache of binary artifacts.
Also, teach `flutter create` to update the cache in case its the first command
that a user runs.

This will help folks run pub get after they upgrade their flutter.git
revision.

* move the engine download code to dart

* fix populating the bin/cache/pkg dir

Add a command that can capture a Skia picture of a Flutter frame and send it to a file or skiaserve debugger (#3165)

* use --no-precompile

* use the flutter bin cache's sdk

* add cache.dart to help manage the cache dir

* sp

* add the dart vm version to flutter doctor

* drop the dart vm change