[ic] Restore PROPERTY key tracking in keyed ICs

src/type-info.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/type-info.h"
 
 #include "src/ast/ast.h"
 #include "src/code-stubs.h"
 #include "src/compiler.h"
 #include "src/ic/ic.h"
@@ skipping 279 matching lines @@
     FeedbackVectorSlot slot, SmallMapList* receiver_types, bool* is_string,
     IcCheckType* key_type) {
   receiver_types->Clear();
   if (slot.IsInvalid()) {
     *is_string = false;
     *key_type = ELEMENT;
   } else {
     KeyedLoadICNexus nexus(feedback_vector_, slot);
     CollectReceiverTypes(&nexus, receiver_types);
     *is_string = HasOnlyStringMaps(receiver_types);
-    *key_type = nexus.FindFirstName() != NULL ? PROPERTY : ELEMENT;
+    *key_type = nexus.GetKeyType();
   }
 }
 
 
 void TypeFeedbackOracle::AssignmentReceiverTypes(FeedbackVectorSlot slot,
                                                  Handle<Name> name,
                                                  SmallMapList* receiver_types) {
   receiver_types->Clear();
   Code::Flags flags = Code::ComputeHandlerFlags(Code::STORE_IC);
   CollectReceiverTypes(slot, name, flags, receiver_types);
@@ skipping 156 matching lines @@
   // Dictionary has been allocated with sufficient size for all elements.
   DisallowHeapAllocation no_need_to_resize_dictionary;
   HandleScope scope(isolate());
   USE(UnseededNumberDictionary::AtNumberPut(
       dictionary_, IdToKey(ast_id), handle(target, isolate())));
 }
 
 
 }  // namespace internal
 }  // namespace v8