Distinguish keyed loads with a symbol key from fast elements loads.

src/type-info.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 197 matching lines @@
 class CompareOperation;
 class CountOperation;
 class CompilationInfo;
 class Property;
 class CaseClause;
 
 class TypeFeedbackOracle BASE_EMBEDDED {
  public:
   TypeFeedbackOracle(Handle<Code> code, Handle<Context> global_context);
 
-  bool LoadIsMonomorphic(Property* expr);
-  bool StoreIsMonomorphic(Expression* expr);
+  bool LoadIsMonomorphicNormal(Property* expr);
+  bool StoreIsMonomorphicNormal(Expression* expr);
   bool CallIsMonomorphic(Call* expr);
 
   Handle<Map> LoadMonomorphicReceiverType(Property* expr);
   Handle<Map> StoreMonomorphicReceiverType(Expression* expr);
 
   ZoneMapList* LoadReceiverTypes(Property* expr, Handle<String> name);
   ZoneMapList* StoreReceiverTypes(Assignment* expr, Handle<String> name);
   ZoneMapList* CallReceiverTypes(Call* expr,
                                  Handle<String> name,
                                  CallKind call_kind);
@@ skipping 30 matching lines @@
 
   Handle<Context> global_context_;
   Handle<NumberDictionary> dictionary_;
 
   DISALLOW_COPY_AND_ASSIGN(TypeFeedbackOracle);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_TYPE_INFO_H_