[Heap] Remove concept of MarkingParity.

src/mips64/macro-assembler-mips64.cc

 // Copyright 2012 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.
 
 #include <limits.h>  // For LONG_MIN, LONG_MAX.
 
 #if V8_TARGET_ARCH_MIPS64
 
 #include "src/base/division-by-constant.h"
 #include "src/bootstrapper.h"
@@ skipping 5907 matching lines @@
 void MacroAssembler::Prologue(bool code_pre_aging) {
   PredictableCodeSizeScope predictible_code_size_scope(
       this, kNoCodeAgeSequenceLength);
   // The following three instructions must remain together and unmodified
   // for code aging to work properly.
   if (code_pre_aging) {
     // Pre-age the code.
     Code* stub = Code::GetPreAgedCodeAgeStub(isolate());
     nop(Assembler::CODE_AGE_MARKER_NOP);
     // Load the stub address to t9 and call it,
-    // GetCodeAgeAndParity() extracts the stub address from this instruction.
+    // GetCodeAge() extracts the stub address from this instruction.
     li(t9,
        Operand(reinterpret_cast<uint64_t>(stub->instruction_start())),
        ADDRESS_LOAD);
     nop();  // Prevent jalr to jal optimization.
     jalr(t9, a0);
     nop();  // Branch delay slot nop.
     nop();  // Pad the empty space.
   } else {
     PushStandardFrame(a1);
     nop(Assembler::CODE_AGE_SEQUENCE_NOP);
@@ skipping 1089 matching lines @@
   if (mag.shift > 0) sra(result, result, mag.shift);
   srl(at, dividend, 31);
   Addu(result, result, Operand(at));
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS64