Allow smis for singleton types

src/factory.cc

 // Copyright 2013 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 23 matching lines @@
 #include "macro-assembler.h"
 #include "objects.h"
 #include "objects-visiting.h"
 #include "platform.h"
 #include "scopeinfo.h"
 
 namespace v8 {
 namespace internal {
 
 
+Handle<Box> Factory::NewBox(Handle<Object> value, PretenureFlag pretenure) {
+  CALL_HEAP_FUNCTION(
+      isolate(),
+      isolate()->heap()->AllocateBox(*value, pretenure),
+      Box);
+}
+
+
 Handle<FixedArray> Factory::NewFixedArray(int size, PretenureFlag pretenure) {
   ASSERT(0 <= size);
   CALL_HEAP_FUNCTION(
       isolate(),
       isolate()->heap()->AllocateFixedArray(size, pretenure),
       FixedArray);
 }
 
 
 Handle<FixedArray> Factory::NewFixedArrayWithHoles(int size,
@@ skipping 1502 matching lines @@
   return Handle<Object>::null();
 }
 
 
 Handle<Object> Factory::ToBoolean(bool value) {
   return value ? true_value() : false_value();
 }
 
 
 } }  // namespace v8::internal