Revert "[Arguments] Merge (7442,7496] from bleeding_edge."

src/ic.cc

 // Copyright 2006-2009 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 1125 matching lines @@
 
 #ifdef DEBUG
   TraceIC("LoadIC", name, state, target());
 #endif
 }
 
 
 MaybeObject* KeyedLoadIC::Load(State state,
                                Handle<Object> object,
                                Handle<Object> key) {
-  // Check for values that can be converted into a symbol.
-  // TODO(1295): Remove this code.
-  HandleScope scope(isolate());
-  if (key->IsHeapNumber() &&
-      isnan(HeapNumber::cast(*key)->value())) {
-    key = isolate()->factory()->nan_symbol();
-  } else if (key->IsUndefined()) {
-    key = isolate()->factory()->undefined_symbol();
-  }
-
   if (key->IsSymbol()) {
     Handle<String> name = Handle<String>::cast(key);
 
     // If the object is undefined or null it's illegal to try to get any
     // of its properties; throw a TypeError in that case.
     if (object->IsUndefined() || object->IsNull()) {
       return TypeError("non_object_property_load", object, name);
     }
 
     if (FLAG_use_ic) {
@@ skipping 1219 matching lines @@
 #undef ADDR
 };
 
 
 Address IC::AddressFromUtilityId(IC::UtilityId id) {
   return IC_utilities[id];
 }
 
 
 } }  // namespace v8::internal