Fix wraparound of deoptimization count in shared function info.

src/objects.h

 // 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 1205 matching lines @@
   V(kOperandIsASmiAndNotAName, "Operand is a smi and not a name")             \
   V(kOperandIsASmiAndNotAString, "Operand is a smi and not a string")         \
   V(kOperandIsASmi, "Operand is a smi")                                       \
   V(kOperandIsNotAName, "Operand is not a name")                              \
   V(kOperandIsNotANumber, "Operand is not a number")                          \
   V(kOperandIsNotASmi, "Operand is not a smi")                                \
   V(kOperandIsNotAString, "Operand is not a string")                          \
   V(kOperandIsNotSmi, "Operand is not smi")                                   \
   V(kOperandNotANumber, "Operand not a number")                               \
   V(kOptimizedTooManyTimes, "optimized too many times")                       \
+  V(kDeoptimizedTooManyTimes, "deoptimized too many times")                   \
   V(kOutOfVirtualRegistersWhileTryingToAllocateTempRegister,                  \
     "Out of virtual registers while trying to allocate temp register")        \
   V(kParseScopeError, "parse/scope error")                                    \
   V(kPossibleDirectCallToEval, "possible direct call to eval")                \
   V(kPropertyAllocationCountFailed, "Property allocation count failed")       \
   V(kReceivedInvalidReturnAddress, "Received invalid return address")         \
   V(kReferenceToAVariableWhichRequiresDynamicLookup,                          \
     "reference to a variable which requires dynamic lookup")                  \
   V(kReferenceToGlobalLexicalVariable,                                        \
     "reference to global lexical variable")                                   \
@@ skipping 5334 matching lines @@
   Handle<Object> GetSourceCode();
 
   // Number of times the function was optimized.
   inline int opt_count();
   inline void set_opt_count(int opt_count);
 
   // Number of times the function was deoptimized.
   inline void set_deopt_count(int value);
   inline int deopt_count();
   inline void increment_deopt_count();
+  inline bool too_many_deopts();
 
   // Number of time we tried to re-enable optimization after it
   // was disabled due to high number of deoptimizations.
   inline void set_opt_reenable_tries(int value);
   inline int opt_reenable_tries();
 
   inline void TryReenableOptimization();
 
   // Stores deopt_count, opt_reenable_tries and ic_age as bit-fields.
   inline void set_counters(int value);
@@ skipping 3587 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_