Add dynamic flag for infinite loop detection on React Native FB

Author: kassens

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

@@ -27,6 +27,7 @@ export const enableUseRefAccessWarning = __VARIANT__;
 export const passChildrenWhenCloningPersistedNodes = __VARIANT__;
 export const useMicrotasksForSchedulingInFabric = __VARIANT__;
 export const enableUnifiedSyncLane = __VARIANT__;
+export const enableInfiniteRenderLoopDetection = __VARIANT__;
 
 // Flow magic to verify the exports of this file match the original version.
 ((((null: any): ExportsType): DynamicFlagsType): ExportsType);

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

@@ -25,6 +25,7 @@ export const {
   passChildrenWhenCloningPersistedNodes,
   useMicrotasksForSchedulingInFabric,
   enableUnifiedSyncLane,
+  enableInfiniteRenderLoopDetection,
 } = dynamicFlags;
 
 // The rest of the flags are static for better dead code elimination.
@@ -96,7 +97,6 @@ export const disableClientCache = true;
 
 export const enableServerComponentKeys = true;
 export const enableServerComponentLogs = true;
-export const enableInfiniteRenderLoopDetection = false;
 
 // TODO: Roll out with GK. Don't keep as dynamic flag for too long, though,
 // because JSX is an extremely hot path.

scripts/flow/xplat.js

@@ -15,4 +15,5 @@ declare module 'ReactNativeInternalFeatureFlags' {
   declare export var passChildrenWhenCloningPersistedNodes: boolean;
   declare export var useMicrotasksForSchedulingInFabric: boolean;
   declare export var enableUnifiedSyncLane: boolean;
+  declare export var enableInfiniteRenderLoopDetection: boolean;
 }