* Use source list from the compiler to track invalidated files.

* Revert accidental change

* Fix first-time-seen-the-file logic

* Fix/simplify invalidate logic now that we can rely on compiler to let us know what is the cut-off point for invalidation.

* Update devfs mock to accommodate for new fields

* Fix deleted files case

* Analyzer found missing final

* some space formattings

* always use blocks in if-else if a block is used

* format spaces in for and while

* allow multiline if conditions

* fix missing space

This is the accompanying change for https://github.com/flutter/engine/pull/8148 and it needs the engine PR to land first.

For https://github.com/flutter/flutter/issues/813

* add trailing commas on list/map/parameters

* add trailing commas on Invocation with nb of arg>1

* add commas for widget containing widgets

* add trailing commas if instantiation contains trailing comma

* revert bad change

* Refactor for iOS.

* For android_xxx_unopt_arm64&ios_xxx_unopt_arm, remove the _arm64/_arm suffix.
dart generated in host_xxx_unopt/host_xxx has an arch of x86_64 which supports arm64/arm.

* Remove suffixes for various archs.

This PR aims at several things:

1. Use pub_semver to check a version in pubspec.yaml meets the requirements specified in https://semver.org/.
2. Don't limit build-number/build-name as a fixed format. Instead, validate it according to the target(ios/android).
3. Make sure that build-number/build-name are always validated no matter it's specified by the `flutter command` or version in pubspec.yaml.

Fixes #27589

* Allow CP_REPOS_DIR

This status shows for the duration of the run, not just while starting. It looks kinda weird in the editors to show a progress bar for "Starting Xcode build" and then removing it once it completes.

It appears that the encoding Apple is using to ensure their syslog
conforms with the syslog requirement for seven-bit ASCII encoding (see:
RFC 5424) is `vis`.

Details: https://www.freebsd.org/cgi/man.cgi?query=vis&sektion=3

* Avoid calling cancel more than once

* add some missing checks for ansispinner

* move flutter_assets to App.framework

* Roll engine to 05fee4eeee0ff6b219b1fcc394371e5f6963cc46

05fee4eee Update default flutter_assets path for iOS embedding (flutter/engine#7518)
02205db01 Roll src/third_party/skia 5d052dac3ac1..02738a86e5fd (4 commits) (flutter/engine#7541)
af907c074 Roll src/third_party/skia 5c7a3ac0e214..5d052dac3ac1 (7 commits) (flutter/engine#7540)
dde286673 IWYU to get SkFontMetrics (flutter/engine#7539)

These are essentially self-inflicted race conditions. Instead of timeouts we're going to try a more verbose logging mechanism that points out when things are taking a long time.

This reverts commit d8db70af.

* move flutter_assets to App.framework

* remove flutter_assets references from all pbxproj files checked in

This reverts commit 76f70810.

* Remove many timeouts.

These are essentially self-inflicted race conditions. Instead of timeouts we're going to try a more verbose logging mechanism that points out when things are taking a long time.

* Get the attach tests to pass.

* Apply review comments from Todd

* More review comment fixes

* Put back the extended timeouts here now that I know why we have them...

* update lint list

* enable sort_pub_dependencies

* enable avoid_returning_null_for_void

* enable flutter_style_todos

* Fix multi-step build handling process.

Stop listening for new step updates after 'all done.' log message. Make sure that we don't delete file too soon, until listener had a chance to process the 'all done' message.

Fixes https://github.com/flutter/flutter/issues/18750

* Emit 'all output' explicitly when build process is done.