Type info: fix three bit representation of smi type.

src/type-info.h

 // Copyright 2010 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 61 matching lines @@
     ASSERT(type_ != kUninitializedType);
     int answer = type_ & 0xf;
     answer = answer > 6 ? answer - 2 : answer;
     ASSERT(answer >= 0);
     ASSERT(answer <= 7);
     return answer;
   }
 
   // Decode compact representation.  Very sensitive to enum values below!
   static TypeInfo ExpandedRepresentation(int three_bit_representation) {
-    Type t = static_cast<Type>(three_bit_representation >= 6 ?
+    Type t = static_cast<Type>(three_bit_representation > 4 ?
                                three_bit_representation + 2 :
                                three_bit_representation);
     t = (t == kUnknownType) ? t : static_cast<Type>(t | kPrimitiveType);
     ASSERT(t == kUnknownType ||
            t == kNumberType ||
            t == kInteger32Type ||
            t == kSmiType ||
            t == kDoubleType);
     return TypeInfo(t);
   }
@@ skipping 142 matching lines @@
 }
 
 
 TypeInfo TypeInfo::Uninitialized() {
   return TypeInfo(kUninitializedType);
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_TYPE_INFO_H_