Summary: Bumps [react-devtools-core](https://github.com/facebook/react/tree/master/packages/react-devtools-core) from 4.10.1 to 4.10.2. This update has only one change: https://github.com/facebook/react/pull/21344 For more background information on this upgrade: https://github.com/facebook/react/issues/21326 cc mweststrate Pull Request resolved: https://github.com/facebook/flipper/pull/2243 Reviewed By: bvaughn Differential Revision: D28040682 Pulled By: mweststrate fbshipit-source-id: 82b1212f839719ff69b3b7735a8a24042b382085