[crud] Rename Effect type (#31557)

Adds a new `Effect` type which for now just points to the `SimpleEffect`
type, in prepartion for later in the stack where we add more.

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[//]: # (BEGIN SAPLING FOOTER)
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* #31523
* __->__ #31557
* #31556
* #31555

packages/react-reconciler/src/ReactFiberHooks.js

@@ -218,7 +218,8 @@ type EffectInstance = {
   destroy: void | (() => void),
 };
 
-export type Effect = {
+export type Effect = SimpleEffect;
+export type SimpleEffect = {
   tag: HookFlags,
   create: () => (() => void) | void,
   inst: EffectInstance,
@@ -2522,6 +2523,10 @@ function pushEffect(
     // Circular
     next: (null: any),
   };
+  return pushEffectImpl(effect);
+}
+
+function pushEffectImpl(effect: Effect): Effect {
   let componentUpdateQueue: null | FunctionComponentUpdateQueue =
     (currentlyRenderingFiber.updateQueue: any);
   if (componentUpdateQueue === null) {