[simulator] remove unused argument field for stop/breaks.

src/arm/disasm-arm.cc

 // 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.
 
 // A Disassembler object is used to disassemble a block of code instruction by
 // instruction. The default implementation of the NameConverter object can be
 // overriden to modify register names or to do symbol lookup on addresses.
 //
 // The example below will disassemble a block of code and print it to stdout.
 //
@@ skipping 1346 matching lines @@
 
 void Decoder::DecodeType6(Instruction* instr) {
   DecodeType6CoprocessorIns(instr);
 }
 
 
 int Decoder::DecodeType7(Instruction* instr) {
   if (instr->Bit(24) == 1) {
     if (instr->SvcValue() >= kStopCode) {
       Format(instr, "stop'cond 'svc");
-      out_buffer_pos_ += SNPrintF(
-          out_buffer_ + out_buffer_pos_, "\n  %p  %08x",
-          reinterpret_cast<void*>(instr + Instruction::kInstrSize),
-          *reinterpret_cast<uint32_t*>(instr + Instruction::kInstrSize));
-      // We have decoded 2 * Instruction::kInstrSize bytes.
-      return 2 * Instruction::kInstrSize;
     } else {
       Format(instr, "svc'cond 'svc");
     }
   } else {
     switch (instr->CoprocessorValue()) {
       case 10:  // Fall through.
       case 11:
         DecodeTypeVFP(instr);
         break;
       case 15:
@@ skipping 1239 matching lines @@
     pc += d.InstructionDecode(buffer, pc);
     v8::internal::PrintF(f, "%p    %08x      %s\n", static_cast<void*>(prev_pc),
                          *reinterpret_cast<int32_t*>(prev_pc), buffer.start());
   }
 }
 
 
 }  // namespace disasm
 
 #endif  // V8_TARGET_ARCH_ARM