Remove FieldType::Iterator.

src/ic/arm/handler-compiler-arm.cc

Index: src/ic/arm/handler-compiler-arm.cc
diff --git a/src/ic/arm/handler-compiler-arm.cc b/src/ic/arm/handler-compiler-arm.cc
index 08710d0de1d36eb5a9983d9e901416cac56a9fa5..fa6152524418d1f9ba1a4bf789281bb0ea267b89 100644
--- a/src/ic/arm/handler-compiler-arm.cc
+++ b/src/ic/arm/handler-compiler-arm.cc
@@ -402,20 +402,11 @@ void NamedStoreHandlerCompiler::GenerateFieldTypeChecks(FieldType* field_type,
   DCHECK(!value_reg.is(map_reg));
   DCHECK(!value_reg.is(scratch));
   __ JumpIfSmi(value_reg, miss_label);
-  FieldType::Iterator it = field_type->Classes();
-  if (!it.Done()) {
+  if (field_type->IsClass()) {
     __ ldr(map_reg, FieldMemOperand(value_reg, HeapObject::kMapOffset));
-    Label do_store;
-    while (true) {
-      __ CmpWeakValue(map_reg, Map::WeakCellForMap(it.Current()), scratch);
-      it.Advance();
-      if (it.Done()) {
-        __ b(ne, miss_label);
-        break;
-      }
-      __ b(eq, &do_store);
-    }
-    __ bind(&do_store);
+    __ CmpWeakValue(map_reg, Map::WeakCellForMap(field_type->AsClass()),
+                    scratch);
+    __ b(ne, miss_label);
   }
 }