[turbofan] Call ArgumentsAccessStub to materialize arguments.

src/code-stubs.h

 // 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.
 
 #ifndef V8_CODE_STUBS_H_
 #define V8_CODE_STUBS_H_
 
 #include "src/allocation.h"
 #include "src/assembler.h"
 #include "src/codegen.h"
@@ skipping 1881 matching lines @@
     NEW_STRICT
   };
 
   ArgumentsAccessStub(Isolate* isolate, Type type) : PlatformCodeStub(isolate) {
     minor_key_ = TypeBits::encode(type);
   }
 
   CallInterfaceDescriptor GetCallInterfaceDescriptor() const override {
     if (type() == READ_ELEMENT) {
       return ArgumentsAccessReadDescriptor(isolate());
+    } else {
+      return ArgumentsAccessNewDescriptor(isolate());
     }
-    return ContextOnlyDescriptor(isolate());
+  }
+
+  static Type ComputeType(bool is_unmapped, bool has_duplicate_parameters) {
+    if (is_unmapped) {
+      return Type::NEW_STRICT;
+    } else if (has_duplicate_parameters) {
+      return Type::NEW_SLOPPY_SLOW;
+    } else {
+      return Type::NEW_SLOPPY_FAST;
+    }
   }
 
  private:
   Type type() const { return TypeBits::decode(minor_key_); }
 
   void GenerateReadElement(MacroAssembler* masm);
   void GenerateNewStrict(MacroAssembler* masm);
   void GenerateNewSloppyFast(MacroAssembler* masm);
   void GenerateNewSloppySlow(MacroAssembler* masm);
 
@@ skipping 1166 matching lines @@
 #undef DEFINE_HYDROGEN_CODE_STUB
 #undef DEFINE_CODE_STUB
 #undef DEFINE_CODE_STUB_BASE
 
 extern Representation RepresentationFromType(Type* type);
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CODE_STUBS_H_