[modules] Explicitly keep track of module requests.

src/ast/scopeinfo.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stdlib.h>
 
 #include "src/ast/context-slot-cache.h"
 #include "src/ast/scopes.h"
 #include "src/ast/variables.h"
 #include "src/bootstrapper.h"
@@ skipping 835 matching lines @@
                                              Handle<Object> module_request) {
   Handle<ModuleInfoEntry> result = isolate->factory()->NewModuleInfoEntry();
   result->set(kExportNameIndex, *export_name);
   result->set(kLocalNameIndex, *local_name);
   result->set(kImportNameIndex, *import_name);
   result->set(kModuleRequestIndex, *module_request);
   return result;
 }
 
 Handle<ModuleInfo> ModuleInfo::New(Isolate* isolate, ModuleDescriptor* descr) {
+  // Serialize module requests.
+  Handle<FixedArray> module_requests = isolate->factory()->NewFixedArray(
+      static_cast<int>(descr->module_requests().size()));
+  for (const auto& elem : descr->module_requests()) {
+    module_requests->set(elem.second, *elem.first->string());
+  }
+
   // Serialize special exports.
   Handle<FixedArray> special_exports =
       isolate->factory()->NewFixedArray(descr->special_exports().length());
   {
     int i = 0;
     for (auto entry : descr->special_exports()) {
       special_exports->set(i++, *entry->Serialize(isolate));
     }
   }
 
   // Serialize regular exports.
   Handle<FixedArray> regular_exports = isolate->factory()->NewFixedArray(
       static_cast<int>(descr->regular_exports().size()));
   {
     int i = 0;
-    for (const auto& it : descr->regular_exports()) {
-      regular_exports->set(i++, *it.second->Serialize(isolate));
+    for (const auto& elem : descr->regular_exports()) {
+      regular_exports->set(i++, *elem.second->Serialize(isolate));
     }
   }
 
   Handle<ModuleInfo> result = isolate->factory()->NewModuleInfo();
+  result->set(kModuleRequestsIndex, *module_requests);
   result->set(kSpecialExportsIndex, *special_exports);
   result->set(kRegularExportsIndex, *regular_exports);
   return result;
 }
 
 }  // namespace internal
 }  // namespace v8