convert another DCHECK into a STATIC_ASSERT

src/arm/code-stubs-arm.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 "src/v8.h"
 
 #if V8_TARGET_ARCH_ARM
 
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
@@ skipping 3690 matching lines @@
     // scratch0 points to properties hash.
     // Compute the masked index: (hash + i + i * i) & mask.
     Register index = scratch0;
     // Capacity is smi 2^n.
     __ ldr(index, FieldMemOperand(properties, kCapacityOffset));
     __ sub(index, index, Operand(1));
     __ and_(index, index, Operand(
         Smi::FromInt(name->Hash() + NameDictionary::GetProbeOffset(i))));
 
     // Scale the index by multiplying by the entry size.
-    DCHECK(NameDictionary::kEntrySize == 3);
+    STATIC_ASSERT(NameDictionary::kEntrySize == 3);
     __ add(index, index, Operand(index, LSL, 1));  // index *= 3.
 
     Register entity_name = scratch0;
     // Having undefined at this place means the name is not contained.
     DCHECK_EQ(kSmiTagSize, 1);
     Register tmp = properties;
     __ add(tmp, properties, Operand(index, LSL, 1));
     __ ldr(entity_name, FieldMemOperand(tmp, kElementsStartOffset));
 
     DCHECK(!tmp.is(entity_name));
@@ skipping 996 matching lines @@
                               MemOperand(fp, 6 * kPointerSize),
                               NULL);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM