[ic] [stubs] Remove InlineCacheState field from the code flags.

src/snapshot/code-serializer.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/snapshot/code-serializer.h"
 
 #include "src/code-stubs.h"
 #include "src/log.h"
 #include "src/macro-assembler.h"
 #include "src/snapshot/deserializer.h"
@@ skipping 49 matching lines @@
 
   if (obj->IsCode()) {
     Code* code_object = Code::cast(obj);
     switch (code_object->kind()) {
       case Code::OPTIMIZED_FUNCTION:  // No optimized code compiled yet.
       case Code::HANDLER:             // No handlers patched in yet.
       case Code::REGEXP:              // No regexp literals initialized yet.
       case Code::NUMBER_OF_KINDS:     // Pseudo enum value.
       case Code::BYTECODE_HANDLER:    // No direct references to handlers.
         CHECK(false);
+      case Code::DEBUG_STUB:
       case Code::BUILTIN:
         SerializeBuiltin(code_object->builtin_index(), how_to_code,
                          where_to_point);
         return;
       case Code::STUB:
 #define IC_KIND_CASE(KIND) case Code::KIND:
         IC_KIND_LIST(IC_KIND_CASE)
 #undef IC_KIND_CASE
         SerializeCodeStub(code_object, how_to_code, where_to_point);
         return;
@@ skipping 275 matching lines @@
   SanityCheckResult r = scd->SanityCheck(isolate, source);
   if (r == CHECK_SUCCESS) return scd;
   cached_data->Reject();
   source->GetIsolate()->counters()->code_cache_reject_reason()->AddSample(r);
   delete scd;
   return NULL;
 }
 
 }  // namespace internal
 }  // namespace v8