[turbofan]: Convert StringFromCharCode to var-args style TF builtin

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 185 matching lines @@
   NumberToStringStub stub(isolate);
   return make_callable(stub);
 }
 
 // static
 Callable CodeFactory::RegExpExec(Isolate* isolate) {
   RegExpExecStub stub(isolate);
   return Callable(stub.GetCode(), stub.GetCallInterfaceDescriptor());
 }
 
+// static
+Callable CodeFactory::StringFromCharCode(Isolate* isolate) {
+  Handle<Code> code(isolate->builtins()->StringFromCharCode());
+  return Callable(code, BuiltinDescriptor(isolate));
+}
+
 #define DECLARE_TFS(Name, Kind, Extra, InterfaceDescriptor) \
   typedef InterfaceDescriptor##Descriptor Name##Descriptor;
 BUILTIN_LIST(IGNORE_BUILTIN, IGNORE_BUILTIN, IGNORE_BUILTIN, DECLARE_TFS,
              IGNORE_BUILTIN, IGNORE_BUILTIN, IGNORE_BUILTIN)
 #undef DECLARE_TFS
 
 #define TFS_BUILTIN(Name)                             \
   Callable CodeFactory::Name(Isolate* isolate) {      \
     Handle<Code> code(isolate->builtins()->Name());   \
     return Callable(code, Name##Descriptor(isolate)); \
@@ skipping 272 matching lines @@
 }
 
 // static
 Callable CodeFactory::InterpreterOnStackReplacement(Isolate* isolate) {
   return Callable(isolate->builtins()->InterpreterOnStackReplacement(),
                   ContextOnlyDescriptor(isolate));
 }
 
 }  // namespace internal
 }  // namespace v8