[modules] Initialize requested_modules before recursing in Module::Instantiate

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index b962909ee29470f91bf061d21cf1974c15ec575d..e1a6dcd9cef807d90494550de89b3ddd33ca165e 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -1976,10 +1976,11 @@ static bool InstantiateModule(Local<Module> v8_module,
       isolate->ThrowIllegalOperation();
       return false;
     }
-    if (!requested_module->Instantiate(v8_context, callback, callback_data)) {
+    module->requested_modules()->set(i, *Utils::OpenHandle(*requested_module));
+    if (!InstantiateModule(requested_module, v8_context, callback,
+                           callback_data)) {
       return false;
     }
-    module->requested_modules()->set(i, *Utils::OpenHandle(*requested_module));
   }
 
   // Resolve imports.