Remove PooledClass from isomorphic build (#10227)

* Inline traverseAllChildren into ReactChildren

* Remove ForEachBookKeeping

* Inline traversal pooling logic into ReactChildren

* Reuse emptyFunction for dummy callback

* Move code around

* Record sizes

Author: gaearon

scripts/rollup/packaging.js

@@ -24,7 +24,7 @@ const facebookWWWSrcDependencies = [
 
 // these files need to be copied to the react-native build
 const reactNativeSrcDependencies = [
-  'src/shared/utils/PooledClass.js',
+  'src/renderers/shared/utils/PooledClass.js',
   'src/renderers/shared/fiber/isomorphic/ReactTypes.js',
   'src/renderers/native/ReactNativeTypes.js',
 ];

scripts/rollup/results.json

@@ -1,28 +1,28 @@
 {
   "bundleSizes": {
     "react.development.js (UMD_DEV)": {
-      "size": 69376,
-      "gzip": 17780
+      "size": 65104,
+      "gzip": 16679
     },
     "react.production.min.js (UMD_PROD)": {
-      "size": 7585,
-      "gzip": 3002
+      "size": 6478,
+      "gzip": 2700
     },
     "react.development.js (NODE_DEV)": {
-      "size": 59667,
-      "gzip": 15411
+      "size": 55397,
+      "gzip": 14325
     },
     "react.production.min.js (NODE_PROD)": {
-      "size": 6451,
-      "gzip": 2576
+      "size": 5343,
+      "gzip": 2268
     },
     "React-dev.js (FB_DEV)": {
-      "size": 56905,
-      "gzip": 14622
+      "size": 52655,
+      "gzip": 13543
     },
     "React-prod.js (FB_PROD)": {
-      "size": 27099,
-      "gzip": 7215
+      "size": 24178,
+      "gzip": 6601
     },
     "react-dom.development.js (UMD_DEV)": {
       "size": 624799,