[turbofan] escape analysis supports arguments object and rest elements

src/interface-descriptors.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/interface-descriptors.h"
 
 namespace v8 {
 namespace internal {
 
 
@@ skipping 359 matching lines @@
 }
 
 void GrowArrayElementsDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   Register registers[] = {ObjectRegister(), KeyRegister()};
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 
 void NewArgumentsElementsDescriptor::InitializePlatformIndependent(
     CallInterfaceDescriptorData* data) {
-  MachineType const kMachineTypes[] = {MachineType::IntPtr()};
+  // kFrame, kLength
+  MachineType const kMachineTypes[] = {MachineType::Pointer(),
+                                       MachineType::TaggedSigned()};
   data->InitializePlatformIndependent(arraysize(kMachineTypes), 0,
                                       kMachineTypes);
 }
 
 void NewArgumentsElementsDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
-  DefaultInitializePlatformSpecific(data, 1);
+  DefaultInitializePlatformSpecific(data, 2);
 }
 
 void VarArgFunctionDescriptor::InitializePlatformIndependent(
     CallInterfaceDescriptorData* data) {
   // kActualArgumentsCount
   MachineType machine_types[] = {MachineType::Int32()};
   data->InitializePlatformIndependent(arraysize(machine_types), 0,
                                       machine_types);
 }
 
@@ skipping 231 matching lines @@
 void FrameDropperTrampolineDescriptor::InitializePlatformIndependent(
     CallInterfaceDescriptorData* data) {
   // New FP value.
   MachineType machine_types[] = {MachineType::Pointer()};
   data->InitializePlatformIndependent(arraysize(machine_types), 0,
                                       machine_types);
 }
 
 }  // namespace internal
 }  // namespace v8