Flatten property_kind into state. Add UNKNOWN as a state for dict-mode receivers

src/hydrogen.cc

 // Copyright 2013 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/hydrogen.h"
 
 #include <algorithm>
 
 #include "src/v8.h"
 
@@ skipping 5279 matching lines @@
 
 
 HOptimizedGraphBuilder::GlobalPropertyAccess
 HOptimizedGraphBuilder::LookupGlobalProperty(Variable* var, LookupIterator* it,
                                              PropertyAccessType access_type) {
   if (var->is_this() || !current_info()->has_global_object()) {
     return kUseGeneric;
   }
 
   switch (it->state()) {
+    case LookupIterator::ACCESSOR:
     case LookupIterator::ACCESS_CHECK:
     case LookupIterator::INTERCEPTOR:
     case LookupIterator::NOT_FOUND:
       return kUseGeneric;
-    case LookupIterator::PROPERTY:
-      if (!it->HasProperty()) return kUseGeneric;
-      switch (it->property_kind()) {
-        case LookupIterator::DATA:
-          if (access_type == STORE && it->IsReadOnly()) return kUseGeneric;
-          return kUseCell;
-        case LookupIterator::ACCESSOR:
-          return kUseGeneric;
-      }
+    case LookupIterator::DATA:
+      if (access_type == STORE && it->IsReadOnly()) return kUseGeneric;
+      return kUseCell;
     case LookupIterator::JSPROXY:
     case LookupIterator::TRANSITION:
+    case LookupIterator::UNKNOWN:
       UNREACHABLE();
   }
   UNREACHABLE();
   return kUseGeneric;
 }
 
 
 HValue* HOptimizedGraphBuilder::BuildContextChainWalk(Variable* var) {
   DCHECK(var->IsContextSlot());
   HValue* context = environment()->context();
@@ skipping 7168 matching lines @@
   if (ShouldProduceTraceOutput()) {
     isolate()->GetHTracer()->TraceHydrogen(name(), graph_);
   }
 
 #ifdef DEBUG
   graph_->Verify(false);  // No full verify.
 #endif
 }
 
 } }  // namespace v8::internal