[crud] Add enableUseResourceEffectHook flag (#31556)

Adds a new feature flag for `enableUseResourceEffectHook`.

---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/facebook/react/pull/31556).
* #31523
* #31557
* __->__ #31556
* #31555

packages/shared/ReactFeatureFlags.js

@@ -161,6 +161,11 @@ export const transitionLaneExpirationMs = 5000;
  */
 export const enableInfiniteRenderLoopDetection = false;
 
+/**
+ * Experimental new hook for better managing resources in effects.
+ */
+export const enableUseResourceEffectHook = false;
+
 // -----------------------------------------------------------------------------
 // Ready for next major.
 //

packages/shared/forks/ReactFeatureFlags.native-fb-dynamic.js

@@ -25,3 +25,4 @@ export const enableShallowPropDiffing = __VARIANT__;
 export const passChildrenWhenCloningPersistedNodes = __VARIANT__;
 export const enableFabricCompleteRootInCommitPhase = __VARIANT__;
 export const enableSiblingPrerendering = __VARIANT__;
+export const enableUseResourceEffectHook = __VARIANT__;

packages/shared/forks/ReactFeatureFlags.native-fb.js

@@ -25,6 +25,7 @@ export const {
   enableObjectFiber,
   enablePersistedModeClonedFlag,
   enableShallowPropDiffing,
+  enableUseResourceEffectHook,
   passChildrenWhenCloningPersistedNodes,
   enableSiblingPrerendering,
 } = dynamicFlags;

packages/shared/forks/ReactFeatureFlags.native-oss.js

@@ -84,6 +84,7 @@ export const syncLaneExpirationMs = 250;
 export const transitionLaneExpirationMs = 5000;
 export const useModernStrictMode = true;
 export const enableSiblingPrerendering = true;
+export const enableUseResourceEffectHook = false;
 
 // Profiling Only
 export const enableProfilerTimer = __PROFILE__;

packages/shared/forks/ReactFeatureFlags.test-renderer.js

@@ -83,6 +83,8 @@ export const renameElementSymbol = true;
 export const enableShallowPropDiffing = false;
 export const enableSiblingPrerendering = true;
 
+export const enableUseResourceEffectHook = false;
+
 // TODO: This must be in sync with the main ReactFeatureFlags file because
 // the Test Renderer's value must be the same as the one used by the
 // react package.

packages/shared/forks/ReactFeatureFlags.test-renderer.native-fb.js

@@ -80,6 +80,7 @@ export const transitionLaneExpirationMs = 5000;
 export const useModernStrictMode = true;
 export const enableFabricCompleteRootInCommitPhase = false;
 export const enableSiblingPrerendering = true;
+export const enableUseResourceEffectHook = false;
 
 // Flow magic to verify the exports of this file match the original version.
 ((((null: any): ExportsType): FeatureFlagsType): ExportsType);

packages/shared/forks/ReactFeatureFlags.test-renderer.www.js

@@ -94,5 +94,7 @@ export const enableOwnerStacks = false;
 export const enableShallowPropDiffing = false;
 export const enableSiblingPrerendering = true;
 
+export const enableUseResourceEffectHook = false;
+
 // Flow magic to verify the exports of this file match the original version.
 ((((null: any): ExportsType): FeatureFlagsType): ExportsType);

packages/shared/forks/ReactFeatureFlags.www-dynamic.js

@@ -42,6 +42,8 @@ export const enableSchedulingProfiler = __VARIANT__;
 export const enableInfiniteRenderLoopDetection = __VARIANT__;
 export const enableSiblingPrerendering = __VARIANT__;
 
+export const enableUseResourceEffectHook = __VARIANT__;
+
 // TODO: These flags are hard-coded to the default values used in open source.
 // Update the tests so that they pass in either mode, then set these
 // to __VARIANT__.

packages/shared/forks/ReactFeatureFlags.www.js

@@ -31,6 +31,7 @@ export const {
   enableSiblingPrerendering,
   enableTransitionTracing,
   enableTrustedTypesIntegration,
+  enableUseResourceEffectHook,
   favorSafetyOverHydrationPerf,
   renameElementSymbol,
   retryLaneExpirationMs,