chore: inline `suspend` (#16755)

* chore: inline `suspend`

* invert condition

packages/svelte/src/internal/client/index.js

@@ -103,7 +103,7 @@ export {
 	save,
 	track_reactivity_loss
 } from './reactivity/async.js';
-export { flushSync as flush, suspend } from './reactivity/batch.js';
+export { flushSync as flush } from './reactivity/batch.js';
 export {
 	async_derived,
 	user_derived as derived,

packages/svelte/src/internal/client/reactivity/async.js

@@ -11,7 +11,7 @@ import {
 	set_active_effect,
 	set_active_reaction
 } from '../runtime.js';
-import { current_batch, suspend } from './batch.js';
+import { Batch, current_batch } from './batch.js';
 import {
 	async_derived,
 	current_async_effect,
@@ -178,7 +178,13 @@ export function unset_context() {
  * @param {() => Promise<void>} fn
  */
 export async function async_body(fn) {
-	var unsuspend = suspend();
+	var boundary = get_boundary();
+	var batch = /** @type {Batch} */ (current_batch);
+	var pending = boundary.is_pending();
+
+	boundary.update_pending_count(1);
+	if (!pending) batch.increment();
+
 	var active = /** @type {Effect} */ (active_effect);
 
 	try {
@@ -188,6 +194,15 @@ export async function async_body(fn) {
 			invoke_error_boundary(error, active);
 		}
 	} finally {
-		unsuspend();
+		boundary.update_pending_count(-1);
+
+		if (pending) {
+			batch.flush();
+		} else {
+			batch.activate();
+			batch.decrement();
+		}
+
+		unset_context();
 	}
 }

packages/svelte/src/internal/client/reactivity/batch.js

@@ -653,28 +653,6 @@ export function schedule_effect(signal) {
 	queued_root_effects.push(effect);
 }
 
-export function suspend() {
-	var boundary = get_boundary();
-	var batch = /** @type {Batch} */ (current_batch);
-	var pending = boundary.is_pending();
-
-	boundary.update_pending_count(1);
-	if (!pending) batch.increment();
-
-	return function unsuspend() {
-		boundary.update_pending_count(-1);
-
-		if (!pending) {
-			batch.activate();
-			batch.decrement();
-		} else {
-			batch.flush();
-		}
-
-		unset_context();
-	};
-}
-
 /**
  * Forcibly remove all current batches, to prevent cross-talk between tests
  */