TypeofMode replaces TypeofState and ContextualMode.

src/x64/codegen-x64.h

 // Copyright 2011 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_X64_CODEGEN_X64_H_
 #define V8_X64_CODEGEN_X64_H_
 
 #include "src/ast.h"
 #include "src/macro-assembler.h"
 
 namespace v8 {
 namespace internal {
 
 
-enum TypeofState { INSIDE_TYPEOF, NOT_INSIDE_TYPEOF };
-
-
 class StringCharLoadGenerator : public AllStatic {
  public:
   // Generates the code for handling different string types and loading the
   // indexed character into |result|.  We expect |index| as untagged input and
   // |result| as untagged output.
   static void Generate(MacroAssembler* masm,
                        Register string,
                        Register index,
                        Register result,
                        Label* call_runtime);
@@ skipping 79 matching lines @@
   const StackArgumentsAccessorReceiverMode receiver_mode_;
   const int extra_displacement_to_last_argument_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(StackArgumentsAccessor);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_X64_CODEGEN_X64_H_