Make not sucking at regexp the default...

src/mips/simulator-mips.cc

 // Copyright 2010 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 121 matching lines @@
 
 static void InitializeCoverage() {}
 
 
 void Debugger::Stop(Instruction* instr) {
   const char* str = reinterpret_cast<char*>(instr->InstructionBits());
   PrintF("Simulator hit %s\n", str);
   sim_->set_pc(sim_->get_pc() + Instruction::kInstructionSize);
   Debug();
 }
-#endif  // def GENERATED_CODE_COVERAGE
+#endif  // GENERATED_CODE_COVERAGE
 
 
 int32_t Debugger::GetRegisterValue(int regnum) {
   if (regnum == kNumSimuRegisters) {
     return sim_->get_pc();
   } else {
     return sim_->get_register(regnum);
   }
 }
 
@@ skipping 1484 matching lines @@
   uintptr_t address = *stack_slot;
   set_register(sp, current_sp + sizeof(uintptr_t));
   return address;
 }
 
 
 #undef UNSUPPORTED
 
 } }  // namespace assembler::mips
 
-#endif  // !defined(__mips)
+#endif  // __mips