Use a module request for asyncRequireModulePath so Metro's transform cache is shareable across checkouts

packages/eslint-plugin-react-native/no-deep-imports.js

@@ -201,6 +201,7 @@ module.exports = {
 
       return (
         source.value === 'react-native/asset-registry' ||
+        source.value === 'react-native/async-require' ||
         source.value === 'react-native/react-private-interface' ||
         source.value === 'react-native/setup-env' ||
         source.value === 'react-native/unstable-internals-do-not-use'

packages/metro-config/src/index.flow.js

@@ -85,8 +85,7 @@ export function getDefaultConfig(projectRoot: string): ConfigT {
     transformer: {
       allowOptionalDependencies: true,
       assetRegistryPath: 'react-native/asset-registry',
-      asyncRequireModulePath:
-        require.resolve('metro-runtime/src/modules/asyncRequire'),
+      asyncRequireModulePath: 'react-native/async-require',
       babelTransformerPath:
         require.resolve('@react-native/metro-babel-transformer'),
       getTransformOptions: async () => ({

packages/react-native/package.json

@@ -49,6 +49,10 @@
       "types": null,
       "default": "./src/asset-registry.js"
     },
+    "./async-require": {
+      "types": null,
+      "default": "./src/async-require.js"
+    },
     "./react-private-interface": {
       "types": null,
       "default": "./src/react-private-interface.js"

packages/react-native/src/async-require.js

@@ -0,0 +1,27 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow strict-local
+ * @format
+ */
+
+'use strict';
+
+// ----------------------------------------------------------------------------
+// react-native/async-require
+//
+// This is an untyped secondary entry point intended to be referenced from
+// Metro's `transformer.asyncRequireModulePath` config option. Metro inlines
+// it into every module that uses `import()`, so it must be a module request
+// that resolves from any module in the project.
+//
+// Apps/libraries should not import this module; use `import()` instead.
+// ----------------------------------------------------------------------------
+
+const asyncRequire = require('metro-runtime/src/modules/asyncRequire');
+
+// eslint-disable-next-line @react-native/monorepo/no-commonjs-exports
+module.exports = asyncRequire;