[es6] silence access-check failure for well-known symbol properties

src/profiler/heap-snapshot-generator.cc

 // Copyright 2013 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/profiler/heap-snapshot-generator.h"
 
 #include "src/code-stubs.h"
 #include "src/conversions.h"
 #include "src/debug/debug.h"
 #include "src/profiler/allocation-tracker.h"
@@ skipping 2142 matching lines @@
     STRUCT_LIST(STRUCT_MAP_NAME)
 #undef STRUCT_MAP_NAME
 #define STRING_NAME(name, str) NAME_ENTRY(name)
     INTERNALIZED_STRING_LIST(STRING_NAME)
 #undef STRING_NAME
 #define SYMBOL_NAME(name) NAME_ENTRY(name)
     PRIVATE_SYMBOL_LIST(SYMBOL_NAME)
 #undef SYMBOL_NAME
 #define SYMBOL_NAME(name, description) NAME_ENTRY(name)
     PUBLIC_SYMBOL_LIST(SYMBOL_NAME)
+    WELL_KNOWN_SYMBOL_LIST(SYMBOL_NAME)
 #undef SYMBOL_NAME
 #undef NAME_ENTRY
     CHECK(!strong_gc_subroot_names_.is_empty());
   }
   return strong_gc_subroot_names_.GetTag(object);
 }
 
 
 void V8HeapExplorer::TagObject(Object* obj, const char* tag) {
   if (IsEssentialObject(obj)) {
@@ skipping 995 matching lines @@
   for (int i = 1; i < sorted_strings.length(); ++i) {
     writer_->AddCharacter(',');
     SerializeString(sorted_strings[i]);
     if (writer_->aborted()) return;
   }
 }
 
 
 }  // namespace internal
 }  // namespace v8