Make stub cache hash work on X64 platform. Stub cache now works....

src/x64/assembler-x64.cc

 // Copyright 2009 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
@@ skipping 438 matching lines @@
 void Assembler::arithmetic_op_32(byte opcode, Register dst, Register src) {
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   emit_optional_rex_32(dst, src);
   emit(opcode);
   emit_modrm(dst, src);
 }
 
 
 void Assembler::arithmetic_op_32(byte opcode,
-                                 const Operand& dst,
-                                 Register src) {
+                                 Register reg,
+                                 const Operand& rm_reg) {
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
-  emit_optional_rex_32(src, dst);
+  emit_optional_rex_32(reg, rm_reg);
   emit(opcode);
-  emit_operand(src, dst);
+  emit_operand(reg, rm_reg);
 }
 
 
 void Assembler::immediate_arithmetic_op(byte subcode,
                                         Register dst,
                                         Immediate src) {
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   emit_rex_64(dst);
   if (is_int8(src.value_)) {
@@ skipping 1700 matching lines @@
     RecordRelocInfo(RelocInfo::POSITION, current_position_);
     written_position_ = current_position_;
   }
 }
 
 
 const int RelocInfo::kApplyMask = 1 << RelocInfo::INTERNAL_REFERENCE;
 
 
 } }  // namespace v8::internal