Revert "Move fork-ts-checker-webpack-plugin dependency to react-dev-utils (#6395)"

This reverts commit c2b7158.

Author: ianschmitz

packages/react-dev-utils/ForkTsCheckerWebpackPlugin.js

@@ -20,7 +20,6 @@
     "eslintFormatter.js",
     "evalSourceMapMiddleware.js",
     "FileSizeReporter.js",
-    "ForkTsCheckerWebpackPlugin.js",
     "formatWebpackMessages.js",
     "getCacheIdentifier.js",
     "getCSSModuleLocalIdent.js",
@@ -55,7 +54,6 @@
     "escape-string-regexp": "1.0.5",
     "filesize": "3.6.1",
     "find-up": "3.0.0",
-    "fork-ts-checker-webpack-plugin": "1.0.0-alpha.6",
     "global-modules": "2.0.0",
     "globby": "8.0.2",
     "gzip-size": "5.0.0",

packages/react-dev-utils/package.json

@@ -29,7 +29,7 @@ const getCSSModuleLocalIdent = require('react-dev-utils/getCSSModuleLocalIdent')
 const paths = require('./paths');
 const getClientEnvironment = require('./env');
 const ModuleNotFoundPlugin = require('react-dev-utils/ModuleNotFoundPlugin');
-const ForkTsCheckerWebpackPlugin = require('react-dev-utils/ForkTsCheckerWebpackPlugin');
+const ForkTsCheckerWebpackPlugin = require('fork-ts-checker-webpack-plugin');
 const typescriptFormatter = require('react-dev-utils/typescriptFormatter');
 // @remove-on-eject-begin
 const getCacheIdentifier = require('react-dev-utils/getCacheIdentifier');

packages/react-scripts/config/webpack.config.js

@@ -45,6 +45,7 @@
     "eslint-plugin-jsx-a11y": "6.1.2",
     "eslint-plugin-react": "7.12.4",
     "file-loader": "2.0.0",
+    "fork-ts-checker-webpack-plugin": "1.0.0-alpha.6",
     "fs-extra": "7.0.1",
     "html-webpack-plugin": "4.0.0-alpha.2",
     "identity-obj-proxy": "3.0.0",