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

src/ic/ic.cc

 // Copyright 2012 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/ic/ic.h"
 
 #include "src/accessors.h"
 #include "src/api-arguments-inl.h"
 #include "src/api.h"
 #include "src/arguments.h"
@@ skipping 27 matching lines @@
     case MONOMORPHIC:
       return '1';
     case RECOMPUTE_HANDLER:
       return '^';
     case POLYMORPHIC:
       return 'P';
     case MEGAMORPHIC:
       return 'N';
     case GENERIC:
       return 'G';
-
-    // We never see the debugger states here, because the state is
-    // computed from the original code - not the patched code. Let
-    // these cases fall through to the unreachable code below.
-    case DEBUG_STUB:
-      break;
   }
   UNREACHABLE();
   return 0;
 }
 
 
 const char* GetTransitionMarkModifier(KeyedAccessStoreMode mode) {
   if (mode == STORE_NO_TRANSITION_HANDLE_COW) return ".COW";
   if (mode == STORE_NO_TRANSITION_IGNORE_OUT_OF_BOUNDS) {
     return ".IGNORE_OOB";
@@ skipping 288 matching lines @@
       break;
     case MEGAMORPHIC:
     case GENERIC:
       if (new_state == MEGAMORPHIC || new_state == GENERIC) break;
       *generic_delta = -1;
       if (new_state == MONOMORPHIC || new_state == POLYMORPHIC) {
         *polymorphic_delta = 1;
       }
       break;
     case RECOMPUTE_HANDLER:
-    case DEBUG_STUB:
       UNREACHABLE();
   }
 }
 
 // static
 void IC::OnTypeFeedbackChanged(Isolate* isolate, Code* host) {
   if (host->kind() != Code::FUNCTION) return;
 
   TypeFeedbackInfo* info = TypeFeedbackInfo::cast(host->type_feedback_info());
   info->change_own_type_change_checksum();
@@ skipping 419 matching lines @@
       }
       DCHECK(UseVector());
       ConfigureVectorState(MEGAMORPHIC, name);
     // Fall through.
     case MEGAMORPHIC:
       UpdateMegamorphicCache(*receiver_map(), *name, *code);
       // Indicate that we've handled this case.
       DCHECK(UseVector());
       vector_set_ = true;
       break;
-    case DEBUG_STUB:
-      break;
     case GENERIC:
       UNREACHABLE();
       break;
   }
 }
 
 Handle<Code> LoadIC::initialize_stub_in_optimized_code(
     Isolate* isolate, ExtraICState extra_state) {
   if (FLAG_tf_load_ic_stub) {
     return LoadICTFStub(isolate, LoadICState(extra_state)).GetCode();
@@ skipping 2129 matching lines @@
     DCHECK_EQ(FeedbackVectorSlotKind::KEYED_LOAD_IC,
               vector->GetKind(vector_slot));
     KeyedLoadICNexus nexus(vector, vector_slot);
     KeyedLoadIC ic(IC::EXTRA_CALL_FRAME, isolate, &nexus);
     ic.UpdateState(receiver, key);
     RETURN_RESULT_OR_FAILURE(isolate, ic.Load(receiver, key));
   }
 }
 }  // namespace internal
 }  // namespace v8