Eliminates support for Dart 1 in flutter_tools, and drops our Dart 1
benchmarks. All commands now run in Dart 1 mode only.
Eliminates --preview-dart-2 / --no-preview-dart-2 support.
Now that we have thousands of tests, it doesn't make sense to display a separate line for each test. The result is just megabytes of logs that you have to scrub through to find error messages.
This test fails consistently on mac2 and mac3 with the attached Moto G4
devices but passes consistently on other machines.
Adding a delay of 1s right after driver.connect() in setUpAll() causes
it to pass on the machines in question, which suggests a race condition.
Specifically it looks like connect returns the moment Flutter Driver
identifies that the isolate is up and running, but empirically it looks
like we start running the first test before the UI is actually up. This
triggers a failure wherein we start looking for elements before they're
onstage.
Link to viewport.dart:213 at HEAD:
b2b4665926/packages/flutter/lib/src/widgets/viewport.dart (L213)
Stack trace:
FlutterDriver waitFor should find text "present"
```
DriverError: Error in Flutter application: Uncaught extension error while executing waitFor: NoSuchMethodError: The getter 'visible' was called on null.
Receiver: null
Tried calling: visible
#0 Object.noSuchMethod (dart:core/runtime/libobject_patch.dart:46:5)
#1 _ViewportElement.debugVisitOnstageChildren. (package:flutter/src/widgets/viewport.dart:213:36)
#2 WhereIterator.moveNext (dart:_internal/iterable.dart:439:11)
#3 Iterable.forEach (dart:core/iterable.dart)
#4 _ViewportElement.debugVisitOnstageChildren (package:flutter/src/widgets/viewport.dart:214:8)
#5 _DepthFirstChildIterator._reverseChildrenOf (package:flutter_test/src/all_elements.dart:54:15)
#6 _DepthFirstChildIterator.moveNext (package:flutter_test/src/all_elements.dart:45:19)
#7 CachingIterable._fillNext (package:flutter/src/foundation/basic_types.dart:252:27)
#8 _LazyListIterator.moveNext (package:flutter/src/foundation/basic_types.dart:279:21)
#9 WhereIterator.moveNext (dart:_internal/iterable.dart:438:22)
#10 CachingIterable._fillNext (package:flutter/src/foundation/basic_types.dart:252:27)
#11 _LazyListIterator.moveNext (package:flutter/src/foundation/basic_types.dart:279:21)
#12 Iterable.isEmpty (dart:core/iterable.dart:449:33)
#13 Iterable.isNotEmpty (dart:core/iterable.dart:456:27)
#14 FlutterDriverExtension._waitForElement. (package:flutter_driver/src/extension/extension.dart:215:51)
#15 FlutterDriverExtension._waitUntilFrame (package:flutter_driver/src/extension/extension.dart:197:19)
#16 FlutterDriverExtension._waitForElement (package:flutter_driver/src/extension/extension.dart:215:11)
#17 FlutterDriverExtension._waitFor (package:flutter_driver/src/extension/extension.dart:286:11)
#18 FlutterDriverExtension.call (package:flutter_driver/src/extension/extension.dart:168:51)
#19 BindingBase.registerServiceExtension. (package:flutter/src/foundation/binding.dart:370:32)
```
Removes a previous hack that no longer appears to help (adding a 1
second delay in setUpAll() does seem to work around this issue though).
Adds a package that will support connecting to and debugging devices with multiple instances of the Dart VM, and operate on multiple Isolates and Flutter Views.
Currently supports connecting to all existing Dart VMs and extracting information about all Flutter Views running across each VM.
* traverse dependencies and dev dependencies separately
* separate dev and reg deps
* update pubspecs
* add checksum string and update transitive dep string. Add additional verify command to check checksum
* cleanup comments
* add missing space, quote, run verify-onlu from bot script
* rerun tool with fixed string
* ensure correct working directory and bump versions
* flutter not flutterRoot
* With dart being default, move preview_dart_2 tests to dart1.
* Swap out defaults for preview-dart-2 option in tests. Make dart1 explicit
* Move suffix around
* Rename files
* Roll engine to b6df7a637498ca9beda1fa9cd7210e3202ea599f.
Changes since last roll:
```
b6df7a637 Roll dart to 290c576264faa096a0b3206c71b2435309d9f904. (#4771)
a6764dbd5 Add sources for Fuchsia target. (#4763)
2d5900615 [fuchsia] Remove unused header file. (#4769)
9717063b7 Revert "Roll dart to c080951d45e79cd25df98036c4be835b284a269c. (#4767)" (#4768)
9a9814312 Roll dart to c080951d45e79cd25df98036c4be835b284a269c. (#4767)
e74e8b35c [async] Update includes of async headers to new path (#4760)
e2c4b2760 Use Dart 2 camel case constants in the engine Dart libraries (#4766)
9c1e48434 Updates for Fuchsia roll. (#4765)
14c940e27 Switch from fxl::Mutex to std::mutex (#4764)
debf82c0b Roll Garnet (#4759)
5bffdefbb Use weak pointers to the accesibility bridge from objects vended to the UIKit accessibility framework. (#4761)
```
