Cosmetic (ARM/MIPS): Use FieldMemOperand where appropriate.

src/mips/regexp-macro-assembler-mips.cc

 // Copyright 2012 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 495 matching lines @@
     Handle<ByteArray> table,
     Label* on_bit_set) {
   __ li(a0, Operand(table));
   if (mode_ != ASCII || kTableMask != String::kMaxAsciiCharCode) {
     __ And(a1, current_character(), Operand(kTableSize - 1));
     __ Addu(a0, a0, a1);
   } else {
     __ Addu(a0, a0, current_character());
   }
 
-  __ lbu(a0, MemOperand(a0, ByteArray::kHeaderSize - kHeapObjectTag));
+  __ lbu(a0, FieldMemOperand(a0, ByteArray::kHeaderSize));
   BranchOrBacktrack(on_bit_set, ne, a0, Operand(zero_reg));
 }
 
 
 bool RegExpMacroAssemblerMIPS::CheckSpecialCharacterClass(uc16 type,
                                                          Label* on_no_match) {
   // Range checks (c in min..max) are generally implemented by an unsigned
   // (c - min) <= (max - min) check.
   switch (type) {
   case 's':
@@ skipping 779 matching lines @@
 }
 
 
 #undef __
 
 #endif  // V8_INTERPRETED_REGEXP
 
 }}  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS