Begin porting CallSite to C++

src/builtins/builtins.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/builtins/builtins.h"
 #include "src/builtins/builtins-utils.h"
 
 #include "src/api-arguments.h"
 #include "src/api-natives.h"
 #include "src/code-factory.h"
@@ skipping 125 matching lines @@
 }
 
 // ES6 section 25.3.1.4 Generator.prototype.throw ( exception )
 void Builtins::Generate_GeneratorPrototypeThrow(CodeStubAssembler* assembler) {
   Generate_GeneratorPrototypeResume(assembler, JSGeneratorObject::kThrow,
                                     "[Generator].prototype.throw");
 }
 
 // -----------------------------------------------------------------------------
 
+// -----------------------------------------------------------------------------
+
 //
 
 namespace {
 
 // Returns the holder JSObject if the function can legally be called with this
 // receiver.  Returns nullptr if the call is illegal.
 // TODO(dcarney): CallOptimization duplicates this logic, merge.
 JSObject* GetCompatibleReceiver(Isolate* isolate, FunctionTemplateInfo* info,
                                 JSObject* receiver) {
   Object* recv_type = info->signature();
@@ skipping 1098 matching lines @@
 #define DEFINE_BUILTIN_ACCESSOR(Name, ...)                                    \
   Handle<Code> Builtins::Name() {                                             \
     Code** code_address = reinterpret_cast<Code**>(builtin_address(k##Name)); \
     return Handle<Code>(code_address);                                        \
   }
 BUILTIN_LIST_ALL(DEFINE_BUILTIN_ACCESSOR)
 #undef DEFINE_BUILTIN_ACCESSOR
 
 }  // namespace internal
 }  // namespace v8