useFormState: Compare action signatures when reusing form state (#27370)

During an MPA form submission, useFormState should only reuse the form
state if same action is passed both times. (We also compare the key
paths.)

We compare the identity of the inner closure function, disregarding the
value of the bound arguments. That way you can pass an inline Server
Action closure:

```js
function FormContainer({maxLength}) {
  function submitAction(prevState, formData) {
    'use server'
    if (formData.get('field').length > maxLength) {
      return { errorMsg: 'Too many characters' };
    }
    // ...
  }
  return <Form submitAction={submitAction} />
}
```

DiffTrain build for commit 95c9554.

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-dev.js

@@ -23998,7 +23998,7 @@ function createFiberRoot(
   return root;
 }
 
-var ReactVersion = "18.3.0-canary-612b2b660-20230913";
+var ReactVersion = "18.3.0-canary-95c9554bc-20230913";
 
 // Might add PROFILE later.
 

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-prod.js

@@ -8620,7 +8620,7 @@ var devToolsConfig$jscomp$inline_1028 = {
     throw Error("TestRenderer does not support findFiberByHostInstance()");
   },
   bundleType: 0,
-  version: "18.3.0-canary-612b2b660-20230913",
+  version: "18.3.0-canary-95c9554bc-20230913",
   rendererPackageName: "react-test-renderer"
 };
 var internals$jscomp$inline_1227 = {
@@ -8651,7 +8651,7 @@ var internals$jscomp$inline_1227 = {
   scheduleRoot: null,
   setRefreshHandler: null,
   getCurrentFiber: null,
-  reconcilerVersion: "18.3.0-canary-612b2b660-20230913"
+  reconcilerVersion: "18.3.0-canary-95c9554bc-20230913"
 };
 if ("undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__) {
   var hook$jscomp$inline_1228 = __REACT_DEVTOOLS_GLOBAL_HOOK__;

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-profiling.js

@@ -9046,7 +9046,7 @@ var devToolsConfig$jscomp$inline_1070 = {
     throw Error("TestRenderer does not support findFiberByHostInstance()");
   },
   bundleType: 0,
-  version: "18.3.0-canary-612b2b660-20230913",
+  version: "18.3.0-canary-95c9554bc-20230913",
   rendererPackageName: "react-test-renderer"
 };
 var internals$jscomp$inline_1268 = {
@@ -9077,7 +9077,7 @@ var internals$jscomp$inline_1268 = {
   scheduleRoot: null,
   setRefreshHandler: null,
   getCurrentFiber: null,
-  reconcilerVersion: "18.3.0-canary-612b2b660-20230913"
+  reconcilerVersion: "18.3.0-canary-95c9554bc-20230913"
 };
 if ("undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__) {
   var hook$jscomp$inline_1269 = __REACT_DEVTOOLS_GLOBAL_HOOK__;

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-dev.js

@@ -27,7 +27,7 @@ if (
 }
           "use strict";
 
-var ReactVersion = "18.3.0-canary-612b2b660-20230913";
+var ReactVersion = "18.3.0-canary-95c9554bc-20230913";
 
 // ATTENTION
 // When adding new symbols to this file,

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-prod.js

@@ -616,4 +616,4 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactCurrentDispatcher.current.useTransition();
 };
-exports.version = "18.3.0-canary-612b2b660-20230913";
+exports.version = "18.3.0-canary-95c9554bc-20230913";

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-profiling.js

@@ -619,7 +619,7 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactCurrentDispatcher.current.useTransition();
 };
-exports.version = "18.3.0-canary-612b2b660-20230913";
+exports.version = "18.3.0-canary-95c9554bc-20230913";
 
           /* global __REACT_DEVTOOLS_GLOBAL_HOOK__ */
 if (

compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/REVISION

@@ -1 +1 @@
-612b2b6601abb844248c384d1e288bb824b180b7
+95c9554bc72813b0ee2b028774bb7cf0482887ba