Revert I+TF for lexical variables

src/bailout-reason.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_BAILOUT_REASON_H_
 #define V8_BAILOUT_REASON_H_
 
 namespace v8 {
 namespace internal {
 
@@ skipping 156 matching lines @@
   V(kOptimizationDisabled, "Optimization disabled")                            \
   V(kOptimizationDisabledForTest, "Optimization disabled for test")            \
   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(kReceivedInvalidReturnAddress, "Received invalid return address")          \
   V(kReferenceToAVariableWhichRequiresDynamicLookup,                           \
     "Reference to a variable which requires dynamic lookup")                   \
-  V(kReferenceToLetOrConstVariable, "Reference to let or const variable")      \
   V(kReferenceToGlobalLexicalVariable, "Reference to global lexical variable") \
   V(kReferenceToModuleVariable, "Reference to module-allocated variable")      \
   V(kReferenceToUninitializedVariable, "Reference to uninitialized variable")  \
   V(kRegisterDidNotMatchExpectedRoot, "Register did not match expected root")  \
   V(kRegisterWasClobbered, "Register was clobbered")                           \
   V(kRememberedSetPointerInNewSpace, "Remembered set pointer is in new space") \
   V(kRestParameter, "Rest parameters")                                         \
   V(kReturnAddressNotFoundInFrame, "Return address not found in frame")        \
   V(kSloppyFunctionExpectsJSReceiverReceiver,                                  \
     "Sloppy function expects JSReceiver as receiver.")                         \
@@ skipping 87 matching lines @@
 };
 #undef ERROR_MESSAGES_CONSTANTS
 
 
 const char* GetBailoutReason(BailoutReason reason);
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_BAILOUT_REASON_H_