[promises] port NewPromiseCapability to TF

src/compiler/code-assembler.cc

 // Copyright 2015 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/compiler/code-assembler.h"
 
 #include <ostream>
 
 #include "src/code-factory.h"
 #include "src/compiler/graph.h"
@@ skipping 54 matching lines @@
           MachineType::PointerRepresentation(),
           InstructionSelector::SupportedMachineOperatorFlags(),
           InstructionSelector::AlignmentRequirements())),
       flags_(flags),
       name_(name),
       code_generated_(false),
       variables_(zone) {}
 
 CodeAssemblerState::~CodeAssemblerState() {}
 
+int CodeAssemblerState::parameter_count() const {
+  return static_cast<int>(raw_assembler_->call_descriptor()->ParameterCount());
+}
+
 CodeAssembler::~CodeAssembler() {}
 
 class BreakOnNodeDecorator final : public GraphDecorator {
  public:
   explicit BreakOnNodeDecorator(NodeId node_id) : node_id_(node_id) {}
 
   void Decorate(Node* node) final {
     if (node->id() == node_id_) {
       base::OS::DebugBreak();
     }
@@ skipping 669 matching lines @@
       }
     }
   }
 
   bound_ = true;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8