add stub for api function calls with known number of parameters

src/x64/code-stubs-x64.cc

 // Copyright 2013 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/v8.h"
 
 #if V8_TARGET_ARCH_X64
 
 #include "src/bootstrapper.h"
 #include "src/code-stubs.h"
@@ skipping 4754 matching lines @@
 void CallApiFunctionStub::Generate(MacroAssembler* masm) {
   // TODO(dcarney): make rax contain the function address.
   bool call_data_undefined = this->call_data_undefined();
   CallApiFunctionStubHelper(masm, ParameterCount(rdi), false,
                             call_data_undefined);
 }
 
 
 void CallApiAccessorStub::Generate(MacroAssembler* masm) {
   bool is_store = this->is_store();
-  int argc = is_store ? 1 : 0;
+  int argc = this->argc();
   bool call_data_undefined = this->call_data_undefined();
   CallApiFunctionStubHelper(masm, ParameterCount(argc), is_store,
                             call_data_undefined);
 }
 
 
 void CallApiGetterStub::Generate(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- rsp[0]                  : return address
   //  -- rsp[8]                  : name
@@ skipping 49 matching lines @@
   __ CallApiFunctionAndReturn(api_function_address, thunk_ref, getter_arg,
                               kStackSpace, nullptr, return_value_operand, NULL);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64