* Revert "e5195ee47 Remove unnecessary includes of Ganesh headers (flutter/engine#7189) (#25282)"
This reverts commit f198d66332.
* Revert "Validate style in TextField (#24587)"
This reverts commit 9a8e2f0c4b.
* Revert "Allow snippets tool to be run from arbitrary CWDs (#25243)"
This reverts commit 4a110b6227.
* Revert "Make doctor output consistent between VS Code/IntelliJ/Android Studio when plugins are missing (#25269)"
This reverts commit e29b023a6b.
* Revert "Add ipv6 and observatory port support to the attach command. (#24537)"
This reverts commit 9150b3f031.
* 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
* Revert "Revert "Roll engine to fed2ea458ed49088d33eddabc546ba56d600c717 (includes dart roll) (#19044)" (#19276)"
This reverts commit cf932490b7 as it also
includes fix for type error that broke tests.
* Add type cast for dart2 type checks.
* Move up to latest goldens
* Make inDirectory() type-parameterized.
* Add typecasting to transitions_perf_test.dart and microbenchmarks.
* Add boolean flag initialization in save_catalog_screenshots.dart
* Add type conversion to gallery transition test
* Roll engine to rolled dart
Add connectionTimeout property to class that extends HttpOverrides.
Upgrade packages.
Add more type fixes.
Update goldens hash.
Add more type fixes.
Upgrade packages.
Fix tests.
Remove strong-mode from analysis options yaml file.
Increase dev/devicelab timeout from 2 to 10 seconds.
Added getVM to waitForViews. Fix type errors in compileExpression.
* Pick up engine revision with fix for microbenchmarks regression.
Increase default timeout from 20/30 to 60s.
