Remove ARGUMENTS_VARIABLE and fix crankshaft to properly detect the arguments object and keep it al…

src/globals.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_GLOBALS_H_
 #define V8_GLOBALS_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 952 matching lines @@
   }
   UNREACHABLE();
   return NULL;
 }
 #endif
 
 enum VariableKind : uint8_t {
   NORMAL_VARIABLE,
   FUNCTION_VARIABLE,
   THIS_VARIABLE,
-  ARGUMENTS_VARIABLE,
   SLOPPY_FUNCTION_NAME_VARIABLE,
   kLastKind = SLOPPY_FUNCTION_NAME_VARIABLE
 };
 
 inline bool IsDynamicVariableMode(VariableMode mode) {
   return mode >= DYNAMIC && mode <= DYNAMIC_LOCAL;
 }
 
 
 inline bool IsDeclaredVariableMode(VariableMode mode) {
@@ skipping 249 matching lines @@
   LIVE_EDIT_FRAME_DROPPED_IN_RETURN_CALL,
   LIVE_EDIT_CURRENTLY_SET_MODE
 };
 
 }  // namespace internal
 }  // namespace v8
 
 namespace i = v8::internal;
 
 #endif  // V8_GLOBALS_H_