Allow smis for singleton types

src/objects-printer.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 952 matching lines @@
 }
 
 
 void DeclaredAccessorDescriptor::DeclaredAccessorDescriptorPrint(FILE* out) {
   HeapObject::PrintHeader(out, "DeclaredAccessorDescriptor");
   PrintF(out, "\n - internal field: ");
   serialized_data()->ShortPrint(out);
 }
 
 
+void Box::BoxPrint(FILE* out) {
+  HeapObject::PrintHeader(out, "Box");
+  PrintF(out, "\n - value: ");
+  value()->ShortPrint(out);
+}
+
+
 void AccessorPair::AccessorPairPrint(FILE* out) {
   HeapObject::PrintHeader(out, "AccessorPair");
   PrintF(out, "\n - getter: ");
   getter()->ShortPrint(out);
   PrintF(out, "\n - setter: ");
   setter()->ShortPrint(out);
 }
 
 
 void AccessCheckInfo::AccessCheckInfoPrint(FILE* out) {
@@ skipping 224 matching lines @@
     }
   }
   PrintF(out, "\n");
 }
 
 
 #endif  // OBJECT_PRINT
 
 
 } }  // namespace v8::internal