Summary: X-link: https://github.com/facebook/react-native/pull/39599 Pull Request resolved: https://github.com/facebook/yoga/pull/1407 Replaces internal usages of YGGutter with Gutter. Changelog: [Internal] Reviewed By: rshest Differential Revision: D49532100 fbshipit-source-id: 53c1d23e23a9db7294c66b6dc0eaff4e62ff278c