PropertyDetails cleanup: NORMAL property type merged with FIELD.

src/mips/macro-assembler-mips.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.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_MIPS
 
@@ skipping 573 matching lines @@
 
     lw(at, FieldMemOperand(reg2, SeededNumberDictionary::kElementsStartOffset));
     if (i != kNumberDictionaryProbes - 1) {
       Branch(&done, eq, key, Operand(at));
     } else {
       Branch(miss, ne, key, Operand(at));
     }
   }
 
   bind(&done);
-  // Check that the value is a normal property.
+  // Check that the value is a field property.
   // reg2: elements + (index * kPointerSize).
   const int kDetailsOffset =
       SeededNumberDictionary::kElementsStartOffset + 2 * kPointerSize;
   lw(reg1, FieldMemOperand(reg2, kDetailsOffset));
+  DCHECK_EQ(FIELD, 0);
   And(at, reg1, Operand(Smi::FromInt(PropertyDetails::TypeField::kMask)));
   Branch(miss, ne, at, Operand(zero_reg));
 
   // Get the value at the masked, scaled index and return.
   const int kValueOffset =
       SeededNumberDictionary::kElementsStartOffset + kPointerSize;
   lw(result, FieldMemOperand(reg2, kValueOffset));
 }
 
 
@@ skipping 5653 matching lines @@
   }
   if (mag.shift > 0) sra(result, result, mag.shift);
   srl(at, dividend, 31);
   Addu(result, result, Operand(at));
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS