Revert of [runtime] Remove useless IN builtin.

src/full-codegen/ia32/full-codegen-ia32.cc

Index: src/full-codegen/ia32/full-codegen-ia32.cc
diff --git a/src/full-codegen/ia32/full-codegen-ia32.cc b/src/full-codegen/ia32/full-codegen-ia32.cc
index a0f3b6f9bff65f07f18254dcbd7c3c74115f0e28..390a44be30c0acb0e922212ffd575ab76830fb35 100644
--- a/src/full-codegen/ia32/full-codegen-ia32.cc
+++ b/src/full-codegen/ia32/full-codegen-ia32.cc
@@ -3237,6 +3237,27 @@
 
   PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
   __ test(eax, Immediate(kSmiTagMask));
+  Split(zero, if_true, if_false, fall_through);
+
+  context()->Plug(if_true, if_false);
+}
+
+
+void FullCodeGenerator::EmitIsNonNegativeSmi(CallRuntime* expr) {
+  ZoneList<Expression*>* args = expr->arguments();
+  DCHECK(args->length() == 1);
+
+  VisitForAccumulatorValue(args->at(0));
+
+  Label materialize_true, materialize_false;
+  Label* if_true = NULL;
+  Label* if_false = NULL;
+  Label* fall_through = NULL;
+  context()->PrepareTest(&materialize_true, &materialize_false,
+                         &if_true, &if_false, &fall_through);
+
+  PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
+  __ test(eax, Immediate(kSmiTagMask | 0x80000000));
   Split(zero, if_true, if_false, fall_through);
 
   context()->Plug(if_true, if_false);
@@ -5004,7 +5025,7 @@
   switch (op) {
     case Token::IN:
       VisitForStackValue(expr->right());
-      __ CallRuntime(Runtime::kHasProperty, 2);
+      __ InvokeBuiltin(Builtins::IN, CALL_FUNCTION);
       PrepareForBailoutBeforeSplit(expr, false, NULL, NULL);
       __ cmp(eax, isolate()->factory()->true_value());
       Split(equal, if_true, if_false, fall_through);