Allow all Names to be fast property names

src/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/v8.h"
 
 #include "src/accessors.h"
 #include "src/api.h"
 #include "src/arguments.h"
 #include "src/codegen.h"
@@ skipping 1308 matching lines @@
     // Strict mode doesn't allow setting non-existent global property.
     return ReferenceError("not_defined", name);
   }
   if (FLAG_use_ic) {
     if (state() == UNINITIALIZED) {
       Handle<Code> stub = pre_monomorphic_stub();
       set_target(*stub);
       TRACE_IC("StoreIC", name);
     } else if (can_store) {
       UpdateCaches(&lookup, receiver, name, value);
-    } else if (!name->IsCacheable(isolate()) ||
-               lookup.IsNormal() ||
+    } else if (lookup.IsNormal() ||
                (lookup.IsField() && lookup.CanHoldValue(value))) {
       Handle<Code> stub = generic_stub();
       set_target(*stub);
     }
   }
 
   // Set the property.
   Handle<Object> result;
   ASSIGN_RETURN_ON_EXCEPTION(
       isolate(),
@@ skipping 1758 matching lines @@
 #undef ADDR
 };
 
 
 Address IC::AddressFromUtilityId(IC::UtilityId id) {
   return IC_utilities[id];
 }
 
 
 } }  // namespace v8::internal