Eliminates the need for the device/daemon code to get at the iOS/Android
tooling indirectly via Doctor. In tests, we now inject the workflow
objects (or mocks) directly.

- remove unused collector parameter
- clarify a comment
- inline _currentPackageTestDir

This code is unused in any test. In upcoming changes that migrate to
Xcode instruments based device listing, we'll mock out the instruments
output separately.

package:test does not allow main() methods to have required
arguments - changing to an optional positional arguments list
fixes this.

* started copying stuff into cupertino page route

* extracted from material page route. Ready for testing

* works with button and gesture

* tests and docs

* review notes

* review notes

* upload master and alpha docs to different hosts

* include robots.txt when master

https://github.com/flutter/flutter/issues/10688

* Benchmark for semantic overhead during transitions

* review comments

* [accessibility] Announce index if tab in tab bar

* added TODO

https://github.com/flutter/flutter/issues/10688

* Prefix and Suffix support for TextFields

* Adding Tests

* Removing spurious newline.

* Fixing a small problem with the test

* Review Changes

See https://github.com/flutter/flutter/issues/8986

And add comments explaining why.

Currently this just prints the observatory URL as a JSON event.
Refactored the code to make this fit in.

* resurrect analyzer benchmarks

* move analyzer_benchmark to the more stable linux/android

* report average rather than best result

* Adding first semantics perf test

* review commnts and analyzer fixes

* fix analyzer warning

* Add SemanticsNode.isSelected flag

* Adds example usage to TabBar

See also https://github.com/flutter/engine/pull/3764

* Review comments

* whitespace fixes

* Fix doc ref and update engine roll

* Support 'be' channel so you can download dart-sdk from the tip.

This is triggered when you put 'hash/<build hash>' into dart-sdk.version file. For example, 'hash/c0617d20158955d99d6447036237fe2639ba088c'

* Add README.md

* Fix grammar, spacing, 80 chars, nicer ===

* works using pageview
it’s a bit heavy and scrolls
no documentation or test yet

* docs and tests

* more docs tweak

* revert drive by page view changes

* swap out the indexed stack for a custom thing

* layout everything on the cheap
tests pass

* add more tests

* move back to stack and add docs

* review notes

* build all the tabs once built

* Make dividers one device pixel thick as defined in Material design spec

* Updated divider test to check stroke width

* Clarified dividers with 0 height in the docs

* Updated Divider.height docs according to PR feedback

- How do you handle a tap on text?
- Why is AnimatedOpacity expensive?
- Why would you use a gesture arena team?
...and other minor fixes

We suspect maybe recent failures are caused by race conditions from
running flutter_tools tests in parallel.