Fix LargeObjectSpace::Verify to allow external strings in large object...

src/spaces.cc

 // Copyright 2006-2008 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 2543 matching lines @@
     HeapObject* object = chunk->GetObject();
     Page* page = Page::FromAddress(object->address());
     ASSERT(object->address() == page->ObjectAreaStart());
 
     // The first word should be a map, and we expect all map pointers to be
     // in map space.
     Map* map = object->map();
     ASSERT(map->IsMap());
     ASSERT(Heap::map_space()->Contains(map));
 
-    // We have only code, sequential strings, fixed arrays, and byte arrays
-    // in large object space.
-    ASSERT(object->IsCode() || object->IsSeqString()
-           || object->IsFixedArray() || object->IsByteArray());
+    // We have only code, sequential strings, external strings
+    // (sequential strings that have been morphed into external
+    // strings), fixed arrays, and byte arrays in large object space.
+    ASSERT(object->IsCode() || object->IsSeqString() ||
+           object->IsExternalString() || object->IsFixedArray() ||
+           object->IsByteArray());
 
     // The object itself should look OK.
     object->Verify();
 
     // Byte arrays and strings don't have interior pointers.
     if (object->IsCode()) {
       VerifyPointersVisitor code_visitor;
       Code::cast(object)->ConvertICTargetsFromAddressToObject();
       object->IterateBody(map->instance_type(),
                           object->Size(),
@@ skipping 78 matching lines @@
                      reinterpret_cast<Object**>(object->address()
                                                 + Page::kObjectAreaSize),
                      allocation_top);
       PrintF("\n");
     }
   }
 }
 #endif  // DEBUG
 
 } }  // namespace v8::internal