diff --git a/src/accessors.cc b/src/accessors.cc
index 43d54fe..c7d9cfe 100644
--- a/src/accessors.cc
+++ b/src/accessors.cc
@@ -126,8 +126,8 @@
       // This means one of the object's prototypes is a JSArray and
       // the object does not have a 'length' property.
       // Calling SetProperty causes an infinite loop.
-      return object->IgnoreAttributesAndSetLocalProperty(Heap::length_symbol(),
-                                                         value, NONE);
+      return object->SetLocalPropertyIgnoreAttributes(Heap::length_symbol(),
+                                                      value, NONE);
     }
   }
   return Top::Throw(*Factory::NewRangeError("invalid_array_length",
@@ -775,7 +775,7 @@
         if (index >= 0) {
           Handle<Object> arguments =
               Handle<Object>(frame->GetExpression(index));
-          if (!arguments->IsTheHole()) return *arguments;
+          if (!arguments->IsArgumentsMarker()) return *arguments;
         }
 
         // If there isn't an arguments variable in the stack, we need to