Fix renamed export of Server Actions (#54241)

This fixes the compilation of `export { action as renamed }` syntax. Previously it's compiled as `export var action = ...` and with this fix, it will be `export var renamed = ...`.

Closes #54229.

packages/next-swc/crates/core/src/server_actions.rs

@@ -948,7 +948,9 @@ impl<C: Comments> VisitMut for ServerActions<C> {
                                     declare: false,
                                     decls: vec![VarDeclarator {
                                         span: DUMMY_SP,
-                                        name: Pat::Ident(ident.into()),
+                                        name: Pat::Ident(
+                                            Ident::new(export_name.clone().into(), DUMMY_SP).into(),
+                                        ),
                                         init: Some(Box::new(Expr::Call(CallExpr {
                                             span: DUMMY_SP,
                                             callee: Callee::Expr(Box::new(Expr::Ident(

packages/next-swc/crates/core/tests/fixture/server-actions/client/4/input.js

@@ -0,0 +1,4 @@
+'use server'
+
+async function foo() {}
+export { foo as bar }

packages/next-swc/crates/core/tests/fixture/server-actions/client/4/output.js

@@ -0,0 +1,3 @@
+/* __next_internal_action_entry_do_not_use__ bar */ import { createActionProxy } from "private-next-rsc-action-proxy";
+import createServerReference from "private-next-rsc-action-client-wrapper";
+export var bar = createServerReference("ac840dcaf5e8197cb02b7f3a43c119b7a770b272");

test/e2e/app-dir/actions/app/client/actions.js

@@ -26,3 +26,8 @@ export default async function (value) {
 export async function redirectAction(path) {
   redirect(path)
 }
+
+const original = async () => {
+  console.log('action')
+}
+export { original as renamed }

test/e2e/app-dir/actions/app/client/page.js

@@ -2,7 +2,13 @@
 
 import { useState } from 'react'
 
-import double, { inc, dec, redirectAction, getHeaders } from './actions'
+import double, {
+  inc,
+  dec,
+  redirectAction,
+  getHeaders,
+  renamed,
+} from './actions'
 import { test } from './actions-lib'
 
 export default function Counter() {
@@ -16,6 +22,9 @@ export default function Counter() {
           console.log(inc)
           const newCount = await inc(count)
           setCount(newCount)
+
+          // test renamed action
+          renamed()
         }}
       >
         +1