[wasm] JSAPI conformance: instance.exports has null prototype.

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/ast/ast.h"
 #include "src/base/bits.h"
@@ skipping 1705 matching lines @@
 }
 
 Handle<JSObject> Factory::NewJSObject(Handle<JSFunction> constructor,
                                       PretenureFlag pretenure) {
   JSFunction::EnsureHasInitialMap(constructor);
   CALL_HEAP_FUNCTION(
       isolate(),
       isolate()->heap()->AllocateJSObject(*constructor, pretenure), JSObject);
 }
 
-
-Handle<JSObject> Factory::NewJSObjectWithNullProto() {
-  Handle<JSObject> result = NewJSObject(isolate()->object_function());
+Handle<JSObject> Factory::NewJSObjectWithNullProto(PretenureFlag pretenure) {
+  Handle<JSObject> result =
+      NewJSObject(isolate()->object_function(), pretenure);
   Handle<Map> new_map =
       Map::Copy(Handle<Map>(result->map()), "ObjectWithNullProto");
   Map::SetPrototype(new_map, null_value());
   JSObject::MigrateToMap(result, new_map);
   return result;
 }
 
 Handle<JSGlobalObject> Factory::NewJSGlobalObject(
     Handle<JSFunction> constructor) {
   DCHECK(constructor->has_initial_map());
@@ skipping 1103 matching lines @@
     Handle<AccessorInfo> prototype =
         Accessors::FunctionPrototypeInfo(isolate(), rw_attribs);
     Descriptor d = Descriptor::AccessorConstant(
         Handle<Name>(Name::cast(prototype->name())), prototype, rw_attribs);
     map->AppendDescriptor(&d);
   }
 }
 
 }  // namespace internal
 }  // namespace v8