Add Smi::Zero and replace all Smi::FromInt(0) calls

src/arm/macro-assembler-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 <limits.h>  // For LONG_MIN, LONG_MAX.
 
 #if V8_TARGET_ARCH_ARM
 
 #include "src/base/bits.h"
 #include "src/base/division-by-constant.h"
@@ skipping 3635 matching lines @@
   TrySmiTag(index, index, &index_tag_bad);
   b(&index_tag_ok);
   bind(&index_tag_bad);
   Abort(kIndexIsTooLarge);
   bind(&index_tag_ok);
 
   ldr(ip, FieldMemOperand(string, String::kLengthOffset));
   cmp(index, ip);
   Check(lt, kIndexIsTooLarge);
 
-  cmp(index, Operand(Smi::FromInt(0)));
+  cmp(index, Operand(Smi::kZero));
   Check(ge, kIndexIsNegative);
 
   SmiUntag(index, index);
 }
 
 
 void MacroAssembler::PrepareCallCFunction(int num_reg_arguments,
                                           int num_double_arguments,
                                           Register scratch) {
   int frame_alignment = ActivationFrameAlignment();
@@ skipping 269 matching lines @@
   b(eq, call_runtime);
 
   LoadRoot(null_value, Heap::kNullValueRootIndex);
   jmp(&start);
 
   bind(&next);
   ldr(r1, FieldMemOperand(r2, HeapObject::kMapOffset));
 
   // For all objects but the receiver, check that the cache is empty.
   EnumLength(r3, r1);
-  cmp(r3, Operand(Smi::FromInt(0)));
+  cmp(r3, Operand(Smi::kZero));
   b(ne, call_runtime);
 
   bind(&start);
 
   // Check that there are no elements. Register r2 contains the current JS
   // object we've reached through the prototype chain.
   Label no_elements;
   ldr(r2, FieldMemOperand(r2, JSObject::kElementsOffset));
   cmp(r2, empty_fixed_array_value);
   b(eq, &no_elements);
@@ skipping 210 matching lines @@
     }
   }
   if (mag.shift > 0) mov(result, Operand(result, ASR, mag.shift));
   add(result, result, Operand(dividend, LSR, 31));
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM