[fix] Fix error placement on (arrow) function when checking load input

.changeset/red-masks-confess.md

@@ -0,0 +1,5 @@
+---
+'svelte-migrate': patch
+---
+
+Fix error placement on (arrow) function when checking load input

packages/migrate/migrations/routes/migrate_page_js/samples.md

@@ -269,14 +269,14 @@ export async function load({ stuff }) {
 ## Bails on non-destructured param
 
 ```js before
-export async function load(input) {
+export const load = (input) => {
 	return {};
 }
 ```
 
 ```js after
 throw new Error("@migration task: Check if you need to migrate the load function input (https://github.com/sveltejs/kit/discussions/5774#discussioncomment-3292693)");
-export async function load(input) {
+export const load = (input) => {
 	return {};
 }
 ```

packages/migrate/migrations/routes/utils.js

@@ -203,11 +203,6 @@ export function indent_at_line(content, offset) {
  * @param {string} [suggestion]
  */
 export function manual_return_migration(node, str, comment_nr, suggestion) {
-	// handle case where this is called on a (arrow) function
-	if (ts.isFunctionExpression(node) || ts.isArrowFunction(node)) {
-		node = node.parent.parent.parent;
-	}
-
 	manual_migration(node, str, 'Migrate this return statement', comment_nr, suggestion);
 }
 
@@ -219,6 +214,11 @@ export function manual_return_migration(node, str, comment_nr, suggestion) {
  * @param {string} [suggestion]
  */
 export function manual_migration(node, str, message, comment_nr, suggestion) {
+	// handle case where this is called on a (arrow) function
+	if (ts.isFunctionExpression(node) || ts.isArrowFunction(node)) {
+		node = node.parent.parent.parent;
+	}
+
 	const indent = indent_at_line(str.original, node.getStart());
 
 	let appended = '';