* 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

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

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 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...

This is needed to run flutter app on multiple iOS devices at a time.

* enable lint unnecessary_new

* fix tests

* fix tests

* fix tests

Disallow calling stop() or cancel() multiple times. This means that
when you use startProgress you have to more carefully think about what
exactly is going on.

Properly cancel startProgress in non-ANSI situations, so that
back-to-back startProgress calls all render to the console.

It was causing problems rolling Flutter into Fuchsia

This reverts commit 0636c6fe.

Disallow calling stop() or cancel() multiple times. This means that
when you use startProgress you have to more carefully think about what
exactly is going on.

Properly cancel startProgress in non-ANSI situations, so that
back-to-back startProgress calls all render to the console.

* re-enable lint unnecessary_const

* remove trailling whitespaces

* remove unnecessary const (after merge)

This reverts commit cc1cf13e.

ios-deploy relies on LLDB.framework, which relies on /usr/bin/python and
the 'six' module that's installed on the system. However, it appears to
use the first version of Python on PATH, rather than explicitly
specifying the system install.  If a user has a custom install of Python
(e.g., via Homebrew or MacPorts) ahead of the system Python on their
PATH, LLDB.framework will pick up that version instead. If the user
hasn't installed the 'six' module, ios-deploy will fail with a
relatively cryptic error message.

This patch pushes /usr/bin to the front of PATH for the duration of the
ios-deploy run to avoid this scenario.

This patch also removes checks for package six.

Neither Flutter nor any of its direct dependencies/tooling relies on
package six. ios-deploy depends on LLDB.framework (included with Xcode),
which relies on a Python script that imports this package but uses
whichever Python is at the front of the path. Flutter now invokes
ios-deploy with a PATH with /usr/bin forced to the front in order to
avoid this problem.

We could have retained the check out of paranoia, but this seems
unnecessary since it's entirely possible LLDB.framework may one day drop
this dependency, in which case I'd expect the base system install of
Python would likely drop it as well.

This is an attempt to reland #18488 with less breakage on macOS.

This reverts commit 77508722.

* Patch to fix builds with custom targets on iOS simulator. #16787

* Fix for unused import.

* Code review changes applied.