Build FB specific Isomorphic Bundles (#19049)

We need this so we can version them separately and use different
feature flags than we use for OSS RN.

I put them in a separate facebook-react-native folder which won't go
into the RN GH repo. I plan on moving the renderers there too but not yet.

.circleci/config.yml

@@ -269,6 +269,7 @@ jobs:
           paths:
             - RELEASE_CHANNEL
             - facebook-www
+            - facebook-react-native
             - node_modules
             - react-native
             - dist
@@ -295,6 +296,7 @@ jobs:
           paths:
             - RELEASE_CHANNEL
             - facebook-www
+            - facebook-react-native
             - node_modules
             - react-native
             - dist

scripts/rollup/bundles.js

@@ -78,6 +78,9 @@ const bundles = [
       FB_WWW_DEV,
       FB_WWW_PROD,
       FB_WWW_PROFILING,
+      RN_FB_DEV,
+      RN_FB_PROD,
+      RN_FB_PROFILING,
     ],
     moduleType: ISOMORPHIC,
     entry: 'react',
@@ -92,6 +95,9 @@ const bundles = [
       NODE_PROD,
       NODE_PROFILING,
       // TODO: use on WWW.
+      RN_FB_DEV,
+      RN_FB_PROD,
+      RN_FB_PROFILING,
     ],
     moduleType: ISOMORPHIC,
     entry: 'react/jsx-runtime',
@@ -108,6 +114,9 @@ const bundles = [
       FB_WWW_DEV,
       FB_WWW_PROD,
       FB_WWW_PROFILING,
+      RN_FB_DEV,
+      RN_FB_PROD,
+      RN_FB_PROFILING,
     ],
     moduleType: ISOMORPHIC,
     entry: 'react/jsx-dev-runtime',
@@ -400,7 +409,14 @@ const bundles = [
 
   /******* React Test Renderer *******/
   {
-    bundleTypes: [FB_WWW_DEV, NODE_DEV, NODE_PROD, UMD_DEV, UMD_PROD],
+    bundleTypes: [
+      FB_WWW_DEV,
+      NODE_DEV,
+      NODE_PROD,
+      UMD_DEV,
+      UMD_PROD,
+      RN_FB_DEV,
+    ],
     moduleType: RENDERER,
     entry: 'react-test-renderer',
     global: 'ReactTestRenderer',
@@ -601,6 +617,9 @@ const bundles = [
       FB_WWW_DEV,
       FB_WWW_PROD,
       FB_WWW_PROFILING,
+      RN_FB_DEV,
+      RN_FB_PROD,
+      RN_FB_PROFILING,
     ],
     moduleType: ISOMORPHIC,
     entry: 'scheduler',
@@ -617,6 +636,8 @@ const bundles = [
       NODE_PROD,
       FB_WWW_DEV,
       FB_WWW_PROD,
+      RN_FB_DEV,
+      RN_FB_PROD,
     ],
     moduleType: ISOMORPHIC,
     entry: 'scheduler/unstable_mock',
@@ -670,6 +691,9 @@ const bundles = [
       NODE_DEV,
       NODE_PROD,
       NODE_PROFILING,
+      RN_FB_DEV,
+      RN_FB_PROD,
+      RN_FB_PROFILING,
     ],
     moduleType: ISOMORPHIC,
     entry: 'scheduler/tracing',

scripts/rollup/packaging.js

@@ -70,6 +70,10 @@ function getBundleOutputPath(bundleType, filename, packageName) {
     case RN_FB_PROD:
     case RN_FB_PROFILING:
       switch (packageName) {
+        case 'scheduler':
+        case 'react':
+        case 'react-test-renderer':
+          return `build/facebook-react-native/${packageName}/cjs/${filename}`;
         case 'react-native-renderer':
           return `build/react-native/implementations/${filename.replace(
             /\.js$/,