[runtime] Turn ArgumentAccessStub into FastNewSloppyArgumentsStub.

src/full-codegen/arm64/full-codegen-arm64.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.
 
 #if V8_TARGET_ARCH_ARM64
 
 #include "src/ast/scopes.h"
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/codegen.h"
@@ skipping 263 matching lines @@
   if (arguments != NULL) {
     // Function uses arguments object.
     Comment cmnt(masm_, "[ Allocate arguments object");
     if (!function_in_register_x1) {
       // Load this again, if it's used by the local context below.
       __ Ldr(x1, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
     }
     if (is_strict(language_mode()) || !has_simple_parameters()) {
       FastNewStrictArgumentsStub stub(isolate());
       __ CallStub(&stub);
+    } else if (literal()->has_duplicate_parameters()) {
+      __ Push(x1);
+      __ CallRuntime(Runtime::kNewSloppyArguments_Generic);
     } else {
-      DCHECK(x1.is(ArgumentsAccessNewDescriptor::function()));
-      // Receiver is just before the parameters on the caller's stack.
-      int num_parameters = info->scope()->num_parameters();
-      int offset = num_parameters * kPointerSize;
-      __ Mov(ArgumentsAccessNewDescriptor::parameter_count(),
-             Smi::FromInt(num_parameters));
-      __ Add(ArgumentsAccessNewDescriptor::parameter_pointer(), fp,
-             StandardFrameConstants::kCallerSPOffset + offset);
-
-      // Arguments to ArgumentsAccessStub:
-      //   function, parameter pointer, parameter count.
-      // The stub will rewrite parameter pointer and parameter count if the
-      // previous stack frame was an arguments adapter frame.
-      ArgumentsAccessStub::Type type = ArgumentsAccessStub::ComputeType(
-          literal()->has_duplicate_parameters());
-      ArgumentsAccessStub stub(isolate(), type);
+      FastNewSloppyArgumentsStub stub(isolate());
       __ CallStub(&stub);
     }
 
     SetVar(arguments, x0, x1, x2);
   }
 
   if (FLAG_trace) {
     __ CallRuntime(Runtime::kTraceEnter);
   }
 
@@ skipping 4324 matching lines @@
   }
 
   return INTERRUPT;
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM64