Reapply change to with/arguments interaction.

src/x64/code-stubs-x64.cc

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 73 matching lines @@
   __ push(rdx);
   __ Push(Factory::false_value());
   __ push(rcx);  // Restore return address.
   __ TailCallRuntime(Runtime::kNewClosure, 3, 1);
 }
 
 
 void FastNewContextStub::Generate(MacroAssembler* masm) {
   // Try to allocate the context in new space.
   Label gc;
-  int length = slots_ + Context::MIN_CONTEXT_SLOTS;
-  __ AllocateInNewSpace((length * kPointerSize) + FixedArray::kHeaderSize,
+  __ AllocateInNewSpace((slots_ * kPointerSize) + FixedArray::kHeaderSize,
                         rax, rbx, rcx, &gc, TAG_OBJECT);
 
   // Get the function from the stack.
   __ movq(rcx, Operand(rsp, 1 * kPointerSize));
 
   // Setup the object header.
   __ LoadRoot(kScratchRegister, Heap::kContextMapRootIndex);
   __ movq(FieldOperand(rax, HeapObject::kMapOffset), kScratchRegister);
-  __ Move(FieldOperand(rax, FixedArray::kLengthOffset), Smi::FromInt(length));
+  __ Move(FieldOperand(rax, FixedArray::kLengthOffset), Smi::FromInt(slots_));
 
   // Setup the fixed slots.
   __ Set(rbx, 0);  // Set to NULL.
   __ movq(Operand(rax, Context::SlotOffset(Context::CLOSURE_INDEX)), rcx);
   __ movq(Operand(rax, Context::SlotOffset(Context::FCONTEXT_INDEX)), rax);
   __ movq(Operand(rax, Context::SlotOffset(Context::PREVIOUS_INDEX)), rbx);
   __ movq(Operand(rax, Context::SlotOffset(Context::EXTENSION_INDEX)), rbx);
 
   // Copy the global object from the surrounding context.
   __ movq(rbx, Operand(rsi, Context::SlotOffset(Context::GLOBAL_INDEX)));
   __ movq(Operand(rax, Context::SlotOffset(Context::GLOBAL_INDEX)), rbx);
 
   // Initialize the rest of the slots to undefined.
   __ LoadRoot(rbx, Heap::kUndefinedValueRootIndex);
-  for (int i = Context::MIN_CONTEXT_SLOTS; i < length; i++) {
+  for (int i = Context::MIN_CONTEXT_SLOTS; i < slots_; i++) {
     __ movq(Operand(rax, Context::SlotOffset(i)), rbx);
   }
 
   // Return and remove the on-stack parameter.
   __ movq(rsi, rax);
   __ ret(1 * kPointerSize);
 
   // Need to collect. Call into runtime system.
   __ bind(&gc);
   __ TailCallRuntime(Runtime::kNewContext, 1, 1);
@@ skipping 4261 matching lines @@
 
   // Do a tail call to the rewritten stub.
   __ jmp(rdi);
 }
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64