DeleteHiddenValue 1627 include/v8.h     V8EXPORT bool DeleteHiddenValue(Handle<String> key);
DeleteHiddenValue 2053 test/cctest/test-api.cc   CHECK(obj->DeleteHiddenValue(key));
DeleteHiddenValue 2084 test/cctest/test-api.cc   CHECK(obj->DeleteHiddenValue(key));