Summary: Pull Request resolved: https://github.com/facebook/yoga/pull/1294 X-link: https://github.com/facebook/react-native/pull/37383 Add -Wextra to the build, and fixup some more instances of -Wunused-parameter that it sufaces which were not automatically fixable. Reviewed By: javache Differential Revision: D45772846 fbshipit-source-id: 680498f66f2104c29a71366bf30dba8895d9baf4