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Avoid calling `builder` in `ConstrainedLayoutBuilder` when layout constraints are the same. [Design doc](flutter.dev/go/layout-builder-optimization). ## Related Issues Fixes https://github.com/flutter/flutter/issues/6469
This directory contains tools and resources that the Flutter team uses during 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.