[LoadIC] Use LoadIC_Uninitialized for 0->PRE transitions

src/builtins/builtins-ic.cc

 // 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.
 
 #include "src/builtins/builtins-utils.h"
 #include "src/builtins/builtins.h"
 #include "src/ic/accessor-assembler.h"
 #include "src/objects-inl.h"
 
 namespace v8 {
 namespace internal {
 
 #define IC_BUILTIN(Name)                                                \
   void Builtins::Generate_##Name(compiler::CodeAssemblerState* state) { \
     AccessorAssembler assembler(state);                                 \
     assembler.Generate##Name();                                         \
   }
 
 #define IC_BUILTIN_PARAM(BuiltinName, GeneratorName, parameter)                \
   void Builtins::Generate_##BuiltinName(compiler::CodeAssemblerState* state) { \
     AccessorAssembler assembler(state);                                        \
     assembler.Generate##GeneratorName(parameter);                              \
   }
 
 IC_BUILTIN(LoadIC)
+IC_BUILTIN(LoadIC_Uninitialized)
 IC_BUILTIN(KeyedLoadIC)
 IC_BUILTIN(LoadICTrampoline)
 IC_BUILTIN(LoadField)
 IC_BUILTIN(KeyedLoadICTrampoline)
 IC_BUILTIN(KeyedLoadIC_Megamorphic)
 IC_BUILTIN(StoreIC)
 IC_BUILTIN(StoreICTrampoline)
 
 IC_BUILTIN_PARAM(StoreICStrict, StoreIC, /* no param */)
 IC_BUILTIN_PARAM(StoreICStrictTrampoline, StoreICTrampoline, /* no param */)
 
 IC_BUILTIN_PARAM(KeyedStoreIC, KeyedStoreIC, SLOPPY)
 IC_BUILTIN_PARAM(KeyedStoreICTrampoline, KeyedStoreICTrampoline, SLOPPY)
 IC_BUILTIN_PARAM(KeyedStoreICStrict, KeyedStoreIC, STRICT)
 IC_BUILTIN_PARAM(KeyedStoreICStrictTrampoline, KeyedStoreICTrampoline, STRICT)
 IC_BUILTIN_PARAM(LoadGlobalIC, LoadGlobalIC, NOT_INSIDE_TYPEOF)
 IC_BUILTIN_PARAM(LoadGlobalICInsideTypeof, LoadGlobalIC, INSIDE_TYPEOF)
 IC_BUILTIN_PARAM(LoadGlobalICTrampoline, LoadGlobalICTrampoline,
                  NOT_INSIDE_TYPEOF)
 IC_BUILTIN_PARAM(LoadGlobalICInsideTypeofTrampoline, LoadGlobalICTrampoline,
                  INSIDE_TYPEOF)
 IC_BUILTIN_PARAM(LoadICProtoArray, LoadICProtoArray, false)
 IC_BUILTIN_PARAM(LoadICProtoArrayThrowIfNonexistent, LoadICProtoArray, true)
 
 }  // namespace internal
 }  // namespace v8