Fix the method prop case in Server Actions transform

packages/next-swc/crates/next-custom-transforms/src/transforms/server_actions.rs

@@ -572,6 +572,16 @@ impl<C: Comments> VisitMut for ServerActions<C> {
         }
     }
 
+    fn visit_mut_method_prop(&mut self, m: &mut MethodProp) {
+        let old_in_export_decl = self.in_export_decl;
+        let old_in_default_export_decl = self.in_default_export_decl;
+        self.in_export_decl = false;
+        self.in_default_export_decl = false;
+        m.visit_mut_children_with(self);
+        self.in_export_decl = old_in_export_decl;
+        self.in_default_export_decl = old_in_default_export_decl;
+    }
+
     fn visit_mut_arrow_expr(&mut self, a: &mut ArrowExpr) {
         // Arrow expressions need to be visited in prepass to determine if it's
         // an action function or not.

packages/next-swc/crates/next-custom-transforms/tests/fixture/server-actions/server/31/input.js

@@ -0,0 +1,9 @@
+'use server'
+
+export const action = {
+  async f(x) {
+    ;(() => {
+      console.log(x)
+    })()
+  },
+}.f

packages/next-swc/crates/next-custom-transforms/tests/fixture/server-actions/server/31/output.js

@@ -0,0 +1,15 @@
+/* __next_internal_action_entry_do_not_use__ {"f14702b5a021dd117f7ec7a3c838f397c2046d3b":"action"} */ import { registerServerReference } from "private-next-rsc-server-reference";
+import { encryptActionBoundArgs, decryptActionBoundArgs } from "private-next-rsc-action-encryption";
+export const action = {
+    async f (x) {
+        ;
+        (()=>{
+            console.log(x);
+        })();
+    }
+}.f;
+import { ensureServerEntryExports } from "private-next-rsc-action-validate";
+ensureServerEntryExports([
+    action
+]);
+registerServerReference("f14702b5a021dd117f7ec7a3c838f397c2046d3b", action);