[turbofan] Introduce JSCallForwardVarargs operator.

src/code-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/code-factory.h"
 
 #include "src/bootstrapper.h"
 #include "src/ic/ic.h"
 
 namespace v8 {
@@ skipping 368 matching lines @@
                   CallTrampolineDescriptor(isolate));
 }
 
 // static
 Callable CodeFactory::CallFunction(Isolate* isolate, ConvertReceiverMode mode) {
   return Callable(isolate->builtins()->CallFunction(mode),
                   CallTrampolineDescriptor(isolate));
 }
 
 // static
+Callable CodeFactory::CallForwardVarargs(Isolate* isolate) {
+  return Callable(isolate->builtins()->CallForwardVarargs(),
+                  CallForwardVarargsDescriptor(isolate));
+}
+
+// static
+Callable CodeFactory::CallFunctionForwardVarargs(Isolate* isolate) {
+  return Callable(isolate->builtins()->CallFunctionForwardVarargs(),
+                  CallForwardVarargsDescriptor(isolate));
+}
+
+// static
 Callable CodeFactory::Construct(Isolate* isolate) {
   return Callable(isolate->builtins()->Construct(),
                   ConstructTrampolineDescriptor(isolate));
 }
 
 // static
 Callable CodeFactory::ConstructWithSpread(Isolate* isolate) {
   return Callable(isolate->builtins()->ConstructWithSpread(),
                   ConstructTrampolineDescriptor(isolate));
 }
@@ skipping 46 matching lines @@
 }
 
 // static
 Callable CodeFactory::FunctionPrototypeBind(Isolate* isolate) {
   return Callable(isolate->builtins()->FunctionPrototypeBind(),
                   BuiltinDescriptor(isolate));
 }
 
 }  // namespace internal
 }  // namespace v8