* fix test in xcode_backend.sh

* -n

* fix devicelab test

* uncomment good code, check for \"\"

* Make host app test actually test host app

* mark updated test as flaky

Updates gradle.

This reverts commit d07c09c9a1a8bd9a0860c579154974437da14024.

This reverts commit 93573de2.

Fails in the devicelab:

```
run:stderr: A problem occurred evaluating project ':app'.
run:stderr: > Could not resolve all files for configuration 'classpath'.2018-10-23T10:46:46.335864:
run:stderr:    > Could not find aapt2-proto.jar (com.android.tools.build:aapt2-proto:0.3.1).2018-10-23T10:46:46.335960:
run:stderr:      Searched in the following locations:2018-10-23T10:46:46.336048:
```

Adds an integration devicelab test that runs an Android app with two
custom named isolates. Tests that the isolate names are present and that
it's possible to attach to just one of the isolates.

Fixes flutter/flutter#22009

Verifies that flutter tools isn't rebuilt. Doesn't truly check that the
created output is runnable.

Dispatch a Flutter.Navigation event each time navigation occurs.

We decided that redefining the default for templates was premature. We're going to go back to having "module" in experimental land again, and we'll try again when we have the feature set fully baked.

This keeps the writing of the .metadata files, and writing the template type to them, because that was a good improvement, and there are still a bunch of added tests that improve our coverage.

I missed some create template conversions in the devicelab directory.

* fix race in devicelab concurrent hot reload

* only complete future once!

* Prototype

* Fix paths to Flutter library resources

* Invoke pod install as necessary for materialized modules

* Add devicelab test for module use on iOS

* Remove debug output

* Rebase, reame materialize editable

* Add devicelab test editable iOS host app

* Removed add2app test section

This is the follow-up to https://github.com/flutter/flutter/pull/20958.

This fixes the devicelab failure after #22006 renamed this command.

* enable lint unnecessary_new

* fix tests

* fix tests

* fix tests

* Add a detach command to detach without terminating (#21376)

* Add a detach command to detach without terminating

Fixes #21154.

* Bump protocol version for app.detach

* Tweak to detach/quit text

* Change logPrefix to named param

* Fix the text that the devicelab attach test looks for

Flutter commands all default to --preview-dart-2. Eliminate support for
the use of this option and the previewDart2 parameter in dev/devicelab
tests.

* Track number of package dependencies in Flutter

Relands #20774.

* Use evalFlutter instead of startProcess.

That way we don't need `flutter` on the PATH.

If //ignore is bad, ignoring something for a whole file is presumably worse.

* Revert "Deprecated CupertinoDialog in favor of a new widget called CupertinoP… (#20649)"

This reverts commit 3a4ae280.

* Revert "Feature pesto new recipes (#19415)"

This reverts commit e2f3b3d6.

* Revert "Use markdown table (#20721)"

This reverts commit 82d43b95.

* Revert "Documentation regarding tap gesture callbacks (#20647)"

This reverts commit 3acc2785.

* Revert "Add branch to footer information in flutter docs (#20711)"

This reverts commit 9118d3d7.

* Revert "Performance test cleanup (#20652)"

This reverts commit 1993a673.

* Revert "Track number of package dependencies in Flutter (#20722)"

This reverts commit 03d6f18f.

All temporary directory start with `flutter_` and have their random component separated from the name by a period, as in `flutter_test_bundle.YFYQMY`.

I've tried to find some of the places where we didn't cleanly delete temporary directories, too. This greatly reduces, though it does not entirely eliminate, the directories we leave behind when running tests, especially `flutter_tools` tests.

While I was at it I standardized on `tempDir` as the variable name for temporary directories, since it was the most common, removing occurrences of `temp` and `tmp`, among others.

Also I factored out some common code that used to catch exceptions that happen on Windows, and made more places use that pattern.

* Upgrade everything except matcher.
* Roll matcher (and test)
* Adjust tests that depend on flutter:test directly to depend on a shim
* Require use of package:test shim and remove other references to package:test

Somehow I forgot to say "super.tap()" when calling "tap()" on the new
superclass, so it was just recursing infinitely but ended up actually
crashing on the first reuse of the finder.

The error was previously swallowed, I made this print it instead.

- Check memory usage in release builds, not profile.
- Use multiple runs and average the results.

* Revert "Add pub cache, artifacts, pkgs to Cirrus cache (#20080)"

This reverts commit 07e93b38.

* Revert "Reduce noise on the memory benchmarks (#19630)"

This reverts commit 8eb5cb7d.

- Check memory usage in release builds, not profile.
- Use multiple runs and average the results.