[builtins] Remove bunch of uses of %_Arguments and %_ArgumentsLength.

src/deoptimizer.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/deoptimizer.h"
 
 #include "src/accessors.h"
 #include "src/ast/prettyprinter.h"
 #include "src/codegen.h"
 #include "src/disasm.h"
@@ skipping 3567 matching lines @@
                                           int frame_index) {
   if (frame_index == 0) {
     // Top level frame -> we need to go to the parent frame on the stack.
     if (!has_adapted_arguments_) return false;
 
     // This is top level frame, so we need to go to the stack to get
     // this function's argument. (Note that this relies on not inlining
     // recursive functions!)
     Handle<JSFunction> function =
         Handle<JSFunction>::cast(frames_[frame_index].front().GetValue());
-    *result = Handle<JSObject>::cast(Accessors::FunctionGetArguments(function));
+    *result = Accessors::FunctionGetArguments(function);
     return true;
   } else {
     TranslatedFrame* previous_frame = &(frames_[frame_index]);
     if (previous_frame->kind() != TranslatedFrame::kArgumentsAdaptor) {
       return false;
     }
     // We get the adapted arguments from the parent translation.
     int length = previous_frame->height();
     Handle<JSFunction> function =
         Handle<JSFunction>::cast(previous_frame->front().GetValue());
@@ skipping 112 matching lines @@
       DCHECK(value_info->IsMaterializedObject());
 
       value_info->value_ =
           Handle<Object>(previously_materialized_objects->get(i), isolate_);
     }
   }
 }
 
 }  // namespace internal
 }  // namespace v8