Enable module scripts in ScriptLoader

third_party/WebKit/Source/core/loader/modulescript/ModuleTreeLinker.cpp

 // Copyright 2017 The Chromium 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 "core/loader/modulescript/ModuleTreeLinker.h"
 
 #include "bindings/core/v8/ScriptModule.h"
 #include "core/dom/AncestorList.h"
 #include "core/dom/ModuleScript.h"
 #include "core/loader/modulescript/ModuleScriptFetchRequest.h"
@@ skipping 299 matching lines @@
   if (state != ModuleInstantiationState::kUninstantiated) {
     AdvanceState(State::kFinished);
     return;
   }
 
   // Step 5. Let record be result's module record.
   ScriptModule record = module_script_->Record();
 
   // Step 6. Let instantiationStatus be record.ModuleDeclarationInstantiation().
   ScriptValue error = modulator_->InstantiateModule(record);
+  /*
   if (!error.IsEmpty()) {
     module_script_->SetInstantiationError(error.GetIsolate(), error.V8Value());
   } else {
     module_script_->SetInstantiationSuccess();
   }
   ModuleInstantiationState instantiation_status =
       module_script_->InstantiationState();
+  */
 
   // Step 7. For each module script script in result's uninstantiated inclusive
   // descendant module scripts, perform the following steps:
   HeapHashSet<Member<ModuleScript>> uninstantiated_set =
       UninstantiatedInclusiveDescendants();
   for (const auto& descendant : uninstantiated_set) {
-    if (instantiation_status == ModuleInstantiationState::kErrored) {
+    if (!error.IsEmpty()) {
       // Step 7.1. If instantiationStatus is an abrupt completion, then set
       // script's
       // instantiation state to "errored", its instantiation error to
       // instantiationStatus.[[Value]], and its module record to null.
       DCHECK(!error.IsEmpty());
       descendant->SetInstantiationError(error.GetIsolate(), error.V8Value());
       descendant->ClearRecord();
     } else {
       // Step 7.2. Otherwise, set script's instantiation state to
       // "instantiated".
@@ skipping 76 matching lines @@
   HeapHashSet<Member<ModuleScript>> uninstantiated_set;
   for (const auto& script : inclusive_descendants) {
     if (script->InstantiationState() ==
         ModuleInstantiationState::kUninstantiated)
       uninstantiated_set.insert(script);
   }
   return uninstantiated_set;
 }
 
 }  // namespace blink