6f71aa9901
Towards https://github.com/flutter/flutter/issues/164315. This PR just writes `bin/cache/engine.stamp` identically to how `bin/internal/engine.version` would otherwise be written, with a caveat that _if_ `engine.version` is tracked, it is now _copied_ to `bin/cache/engine.stamp`. After this lands, I'll send PRs to update tooling that looks for `engine.version` and give a heads up to the larger team (i.e. Dart HH bot or whomever we will break by doing this).
This directory contains tools and resources that the Flutter team uses during the development of the framework. The tools in this directory should not be necessary for developing Flutter applications, though of course, they may be interesting if you are curious.
The tests in this directory are run in the framework_tests_misc-*
shards.