A64: add missing files.

src/a64/codegen-a64.h

-// Copyright 2011 the V8 project authors. All rights reserved.
+// Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
 //       with the distribution.
 //     * Neither the name of Google Inc. nor the names of its
 //       contributors may be used to endorse or promote products derived
 //       from this software without specific prior written permission.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-
-#ifndef V8_MIPS_CODEGEN_MIPS_H_
-#define V8_MIPS_CODEGEN_MIPS_H_
-
+#ifndef V8_A64_CODEGEN_A64_H_
+#define V8_A64_CODEGEN_A64_H_
 
 #include "ast.h"
 #include "ic-inl.h"
 
 namespace v8 {
 namespace internal {
 
 // Forward declarations
 class CompilationInfo;
 
-enum TypeofState { INSIDE_TYPEOF, NOT_INSIDE_TYPEOF };
-
 // -------------------------------------------------------------------------
 // CodeGenerator
 
 class CodeGenerator: public AstVisitor {
  public:
   CodeGenerator() {
     InitializeAstVisitor();
   }
 
   static bool MakeCode(CompilationInfo* info);
@@ skipping 53 matching lines @@
                           Register temp1,
                           Register temp2,
                           Register temp3);
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MathExpGenerator);
 };
 
 } }  // namespace v8::internal
 
-#endif  // V8_MIPS_CODEGEN_MIPS_H_
+#endif  // V8_A64_CODEGEN_A64_H_