MIPS32: Remove EXTRA, NORMAL instruction type check.

src/mips/simulator-mips.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.
 
 
 // Declares a Simulator for MIPS instructions if we are not generating a native
 // MIPS binary. This Simulator allows us to run and debug MIPS code generation
 // on regular desktop machines.
 // V8 calls into generated code by "calling" the CALL_GENERATED_CODE macro,
 // which will start execution in the Simulator or forwards to the real entry
@@ skipping 122 matching lines @@
 
 class SimInstruction : public InstructionGetters<SimInstructionBase> {
  public:
   SimInstruction() {}
 
   explicit SimInstruction(Instruction* instr) { *this = instr; }
 
   SimInstruction& operator=(Instruction* instr) {
     operand_ = *reinterpret_cast<const int32_t*>(instr);
     instr_ = instr;
-    type_ = InstructionBase::InstructionType(EXTRA);
+    type_ = InstructionBase::InstructionType();
     DCHECK(reinterpret_cast<void*>(&operand_) == this);
     return *this;
   }
 };
 
 class Simulator {
  public:
   friend class MipsDebugger;
 
   // Registers are declared in order. See SMRL chapter 2.
@@ skipping 379 matching lines @@
   static inline void UnregisterCTryCatch(Isolate* isolate) {
     Simulator::current(isolate)->PopAddress();
   }
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // !defined(USE_SIMULATOR)
 #endif  // V8_MIPS_SIMULATOR_MIPS_H_