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

src/ia32/macro-assembler-ia32.cc

Index: src/ia32/macro-assembler-ia32.cc
diff --git a/src/ia32/macro-assembler-ia32.cc b/src/ia32/macro-assembler-ia32.cc
index 823be7f4d7e178301652ad97c8d84471a9869967..2bd8760c3aba856d46d658bb8e4b4a2590e94b8a 100644
--- a/src/ia32/macro-assembler-ia32.cc
+++ b/src/ia32/macro-assembler-ia32.cc
@@ -3090,7 +3090,7 @@ void MacroAssembler::EmitSeqStringSetCharCheck(Register string,
   cmp(index, FieldOperand(string, String::kLengthOffset));
   Check(less, kIndexIsTooLarge);
 
-  cmp(index, Immediate(Smi::kZero));
+  cmp(index, Immediate(Smi::FromInt(0)));
   Check(greater_equal, kIndexIsNegative);
 
   // Restore the index
@@ -3343,7 +3343,7 @@ void MacroAssembler::CheckEnumCache(Label* call_runtime) {
 
   // For all objects but the receiver, check that the cache is empty.
   EnumLength(edx, ebx);
-  cmp(edx, Immediate(Smi::kZero));
+  cmp(edx, Immediate(Smi::FromInt(0)));
   j(not_equal, call_runtime);
 
   bind(&start);