* tweak the text for the 'elements didnt reload' message

* review comments

* prefix items with a list char

* add a hostIsIde param instead of the isDaemonMode top-level function

* add a trailing comma

* Use IKG for restarts, use IKG with ProtectedFileByteStore.

* Fix comment, add end of file newline.

* Remove unused import

* try some lints

* remove avoid_returning_this rule

* executable.dart#main() depends on runner.dart#run()
* Refactor code such that non-commands don't depend on commands.

No code was actually changed in this PR - code was merely moved from
point A to point B.

This reverts commit 5939ff45.

UnconstrainedBox will allow its child to size itself as if it had no constraints, and then attempt to fit around that object, until its own constraints are exceeded, in which case it will clip and display an overflow warning.

I also factored out DebugOverflowIndicator, which will draw overflow indicators on containers which overflow but aren't expected to.

* fix with first part of test

* Test without reshifting

* Let sliver fixed extend list also handle disappearing top items.

I'm not really sure how to test this without a reference test, since
eventually we want to move this to a font feature and thus the obvious
test (looking for the Transform widget) isn't really valid.

* address unused element issues and new warnings

* add a missing return

* enable lint prefer_asserts_in_initializer_lists

* enable --assert-initializer

* a => an

(I suspect this accounts the sets of microtasks from scheduleWarmUpFrame now running separately.)

Issue https://github.com/flutter/flutter/issues/9998

* Surface shadowColor from RenderPhysicalModel to Material

* Fix typo in material_test

* Add nullability info to documentation

* Add support for animating elevation shadow color

* Add shadowColor to Material's debugFillProperties()

* Add missing default value for elevation in Material debugFillProperties()

* Add missing non-null asserts for animate flags in AnimatedPhysicalModel

* Add test for shadow color animating smoothly

* delay taking screenshot to allow GPU thread to render the frame

* address comments