Properly build bundle for parseHookNames + rm unintended change in webpack config

Author: Juan Tejada

packages/react-devtools-core/package.json

@@ -13,8 +13,7 @@
     "dist",
     "backend.js",
     "build-info.json",
-    "standalone.js",
-    "hookNames.js"
+    "standalone.js"
   ],
   "scripts": {
     "build": "yarn build:backend && yarn build:standalone",

packages/react-devtools-core/src/standalone.js

@@ -45,7 +45,9 @@ let statusListener: StatusListener = (message: string) => {};
 
 // TODO (Webpack 5) Hopefully we can remove this prop after the Webpack 5 migration.
 function hookNamesModuleLoaderFunction() {
-  return import('./hookNames');
+  return import(
+    /* webpackChunkName: 'parseHookNames' */ 'react-devtools-shared/src/hooks/parseHookNames'
+  );
 }
 
 function setContentDOMNode(value: HTMLElement) {

packages/react-devtools-core/webpack.standalone.js

@@ -38,11 +38,10 @@ const babelOptions = {
 
 module.exports = {
   mode: __DEV__ ? 'development' : 'production',
-  devtool: __DEV__ ? 'cheap-source-map' : 'source-map',
+  devtool: __DEV__ ? 'cheap-module-eval-source-map' : 'source-map',
   target: 'electron-main',
   entry: {
     standalone: './src/standalone.js',
-    hookNames: './src/hookNames.js',
   },
   output: {
     path: __dirname + '/dist',