Create a internal, global native context used only for generated code stubs

src/code-stubs.cc

 // Copyright 2012 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/code-stubs.h"
 
 #include <sstream>
 
 #include "src/bootstrapper.h"
 #include "src/cpu-profiler.h"
@@ skipping 449 matching lines @@
   }
   TraceTransition(old_state, state);
   set_sub_minor_key(TypesBits::update(sub_minor_key(), state.ToIntegral()));
 }
 
 
 namespace {
 
 Handle<JSFunction> GetFunction(Isolate* isolate, const char* name) {
   v8::ExtensionConfiguration no_extensions;
-  Handle<Context> ctx = isolate->bootstrapper()->CreateEnvironment(
-      MaybeHandle<JSGlobalProxy>(), v8::Local<v8::ObjectTemplate>(),
-      &no_extensions);
-  Handle<JSBuiltinsObject> builtins = handle(ctx->builtins());
-  MaybeHandle<Object> fun = Object::GetProperty(isolate, builtins, name);
+  MaybeHandle<Object> fun = Object::GetProperty(
+      isolate, isolate->factory()->code_stub_exports_object(), name);
   Handle<JSFunction> function = Handle<JSFunction>::cast(fun.ToHandleChecked());
   DCHECK(!function->IsUndefined() &&
          "JavaScript implementation of stub not found");
   return function;
 }
 }  // namespace
 
 
 Handle<Code> TurboFanCodeStub::GenerateCode() {
   // Get the outer ("stub generator") function.
@@ skipping 576 matching lines @@
 
   if (type->Is(Type::UntaggedPointer())) {
     return Representation::External();
   }
 
   DCHECK(!type->Is(Type::Untagged()));
   return Representation::Tagged();
 }
 }  // namespace internal
 }  // namespace v8