Reland "Use symbols instead of hidden properties for i18n markers."

src/hydrogen-instructions.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/base/bits.h"
 #include "src/double.h"
 #include "src/factory.h"
 #include "src/hydrogen-infer-representation.h"
@@ skipping 2855 matching lines @@
       IMMORTAL_IMMOVABLE_ROOT_LIST(IMMORTAL_IMMOVABLE_ROOT)
 #undef IMMORTAL_IMMOVABLE_ROOT
 #define INTERNALIZED_STRING(name, value) \
       object_.IsKnownGlobal(heap->name()) ||
       INTERNALIZED_STRING_LIST(INTERNALIZED_STRING)
 #undef INTERNALIZED_STRING
 #define STRING_TYPE(NAME, size, name, Name) \
       object_.IsKnownGlobal(heap->name##_map()) ||
       STRING_TYPE_LIST(STRING_TYPE)
 #undef STRING_TYPE
+#define SYMBOL(name) object_.IsKnownGlobal(heap->name()) ||
+      PRIVATE_SYMBOL_LIST(SYMBOL)
+#undef SYMBOL
       false;
 }
 
 
 bool HConstant::EmitAtUses() {
   DCHECK(IsLinked());
   if (block()->graph()->has_osr() &&
       block()->graph()->IsStandardConstant(this)) {
     // TODO(titzer): this seems like a hack that should be fixed by custom OSR.
     return true;
@@ skipping 1915 matching lines @@
       break;
     case HObjectAccess::kExternalMemory:
       os << "[external-memory]";
       break;
   }
 
   return os << "@" << access.offset();
 }
 
 } }  // namespace v8::internal