[stubs] Turn FastCloneRegExpStub into a TurboFan code stub.

src/deoptimize-reason.h

 // Copyright 2016 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_DEOPTIMIZE_REASON_H_
 #define V8_DEOPTIMIZE_REASON_H_
 
 #include "src/globals.h"
 
 namespace v8 {
@@ skipping 50 matching lines @@
   V(TooManyArguments, "too many arguments")                                   \
   V(TracingElementsTransitions, "Tracing elements transitions")               \
   V(TypeMismatchBetweenFeedbackAndConstant,                                   \
     "Type mismatch between feedback and constant")                            \
   V(UnexpectedCellContentsInConstantGlobalStore,                              \
     "Unexpected cell contents in constant global store")                      \
   V(UnexpectedCellContentsInGlobalStore,                                      \
     "Unexpected cell contents in global store")                               \
   V(UnexpectedObject, "unexpected object")                                    \
   V(UnexpectedRHSOfBinaryOperation, "Unexpected RHS of binary operation")     \
-  V(UninitializedBoilerplateInFastClone,                                      \
-    "Uninitialized boilerplate in fast clone")                                \
   V(UninitializedBoilerplateLiterals, "Uninitialized boilerplate literals")   \
   V(UnknownMapInPolymorphicAccess, "Unknown map in polymorphic access")       \
   V(UnknownMapInPolymorphicCall, "Unknown map in polymorphic call")           \
   V(UnknownMapInPolymorphicElementAccess,                                     \
     "Unknown map in polymorphic element access")                              \
   V(UnknownMap, "Unknown map")                                                \
   V(ValueMismatch, "value mismatch")                                          \
   V(WrongInstanceType, "wrong instance type")                                 \
   V(WrongMap, "wrong map")                                                    \
   V(UndefinedOrNullInForIn, "null or undefined in for-in")                    \
   V(UndefinedOrNullInToObject, "null or undefined in ToObject")
 
 enum class DeoptimizeReason : uint8_t {
 #define DEOPTIMIZE_REASON(Name, message) k##Name,
   DEOPTIMIZE_REASON_LIST(DEOPTIMIZE_REASON)
 #undef DEOPTIMIZE_REASON
 };
 
 std::ostream& operator<<(std::ostream&, DeoptimizeReason);
 
 size_t hash_value(DeoptimizeReason reason);
 
 char const* const DeoptimizeReasonToString(DeoptimizeReason reason);
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_DEOPTIMIZE_REASON_H_