Upgrades @babel/core, babel-preset-fbjs, and gulp-util (#2028)

Summary:
**Summary**

Addresses broken flow types extracted during the gulp build. Solves #2027

Upgrades the following dependencies:

- babel-core@^6.8.0 -> babel/core@^7.3.4
- babel-preset-fbjs@^2.1.0 -> ^3.2.0
- fbjs-scripts@^0.8.0 -> ^1.1.0
- gulp-babel@^6.1.2 -> ^8.0.0
- jest@^23.5.0 -> ^24.1.0

**Test Plan**

yarn
yarn test
yarn flow

Manual inspection of generated flow types under `lib/`
Pull Request resolved: #2028

Reviewed By: mitermayer

Differential Revision: D14366317

Pulled By: mitermayer

fbshipit-source-id: 734c15717e94c3bc7f1a552496b67ce6a509da06

Author: Claudio Procida

meta/bundle-size-stats/Draft.js.json

@@ -41,9 +41,9 @@
     "react-dom": "^0.14.0 || ^15.0.0-rc || ^16.0.0-rc || ^16.0.0"
   },
   "devDependencies": {
-    "babel-core": "^6.8.0",
-    "babel-eslint": "^7.2.3",
-    "babel-preset-fbjs": "^2.1.0",
+    "@babel/core": "^7.3.4",
+    "babel-eslint": "^8.1.1",
+    "babel-preset-fbjs": "^3.2.0",
     "cross-env": "^5.1.3",
     "del": "^2.2.0",
     "envify": "^3.4.0",
@@ -57,10 +57,10 @@
     "eslint-plugin-prettier": "^2.3.1",
     "eslint-plugin-react": "^7.3.0",
     "eslint-plugin-relay": "^0.0.8",
-    "fbjs-scripts": "^0.8.0",
+    "fbjs-scripts": "^1.1.0",
     "flow-bin": "^0.92.0",
     "gulp": "^4.0.0",
-    "gulp-babel": "^6.1.2",
+    "gulp-babel": "^8.0.0",
     "gulp-browserify-thin": "^0.1.5",
     "gulp-clean-css": "^2.0.3",
     "gulp-concat-css": "^2.2.0",
@@ -71,7 +71,7 @@
     "gulp-rename": "^1.2.2",
     "gulp-uglify": "^1.2.0",
     "gulp-util": "^3.0.6",
-    "jest": "^23.5.0",
+    "jest": "^24.1.0",
     "prettier": "1.13.6",
     "react": "^16.8.0",
     "react-dom": "^16.8.0",
@@ -82,9 +82,6 @@
     "vinyl-buffer": "^1.0.0",
     "webpack-stream": "^4.0.0"
   },
-  "resolutions": {
-    "gulp/**/natives": "1.1.3"
-  },
   "devEngines": {
     "node": "8.x || 9.x || 10.x",
     "npm": "2.x || 3.x || 5.x || 6.x"

meta/bundle-size-stats/Draft.min.js.json

@@ -5,7 +5,7 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-var babel = require('babel-core');
+var babel = require('@babel/core');
 var createCacheKeyFunction = require('fbjs-scripts/jest/createCacheKeyFunction');
 var fbjsConfigurePreset = require('babel-preset-fbjs/configure');
 var moduleMap = require('../module-map');