[modules] Turn JSModule into Module.

src/factory.cc

 // Copyright 2014 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 "src/factory.h"
 
 #include "src/accessors.h"
 #include "src/allocation-site-scopes.h"
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
@@ skipping 771 matching lines @@
 
 Handle<ScriptContextTable> Factory::NewScriptContextTable() {
   Handle<FixedArray> array = NewFixedArray(1);
   array->set_map_no_write_barrier(*script_context_table_map());
   Handle<ScriptContextTable> context_table =
       Handle<ScriptContextTable>::cast(array);
   context_table->set_used(0);
   return context_table;
 }
 
-Handle<Context> Factory::NewModuleContext(Handle<JSModule> module,
+Handle<Context> Factory::NewModuleContext(Handle<Module> module,
                                           Handle<JSFunction> function,
                                           Handle<ScopeInfo> scope_info) {
   DCHECK_EQ(scope_info->scope_type(), MODULE_SCOPE);
   Handle<FixedArray> array =
       NewFixedArray(scope_info->ContextLength(), TENURED);
   array->set_map_no_write_barrier(*module_context_map());
   Handle<Context> context = Handle<Context>::cast(array);
   context->set_closure(*function);
   context->set_previous(function->context());
   context->set_extension(*module);
@@ skipping 895 matching lines @@
   DCHECK(function->shared()->is_resumable());
   JSFunction::EnsureHasInitialMap(function);
   Handle<Map> map(function->initial_map());
   DCHECK_EQ(JS_GENERATOR_OBJECT_TYPE, map->instance_type());
   CALL_HEAP_FUNCTION(
       isolate(),
       isolate()->heap()->AllocateJSObjectFromMap(*map),
       JSGeneratorObject);
 }
 
-Handle<JSModule> Factory::NewJSModule() {
-  Handle<JSModule> module =
-      Handle<JSModule>::cast(NewJSObjectFromMap(js_module_map(), TENURED));
+Handle<Module> Factory::NewModule(int min_size) {
+  Handle<Module> module = Handle<Module>::cast(NewStruct(MODULE_TYPE));
+  Handle<ObjectHashTable> exports = ObjectHashTable::New(isolate(), min_size);
+  module->set_exports(*exports);
   return module;
 }
 
 Handle<JSArrayBuffer> Factory::NewJSArrayBuffer(SharedFlag shared,
                                                 PretenureFlag pretenure) {
   Handle<JSFunction> array_buffer_fun(
       shared == SharedFlag::kShared
           ? isolate()->native_context()->shared_array_buffer_fun()
           : isolate()->native_context()->array_buffer_fun());
   CALL_HEAP_FUNCTION(isolate(), isolate()->heap()->AllocateJSObject(
@@ skipping 810 matching lines @@
     Handle<AccessorInfo> prototype =
         Accessors::FunctionPrototypeInfo(isolate(), attribs);
     AccessorConstantDescriptor d(Handle<Name>(Name::cast(prototype->name())),
                                  prototype, attribs);
     map->AppendDescriptor(&d);
   }
 }
 
 }  // namespace internal
 }  // namespace v8