EXTERNAL_SYMBOL_TYPE  481 src/objects-printer.cc     case EXTERNAL_SYMBOL_TYPE: return "EXTERNAL_SYMBOL";
EXTERNAL_SYMBOL_TYPE  222 src/objects.h    V(EXTERNAL_SYMBOL_TYPE)                                                      \
EXTERNAL_SYMBOL_TYPE  332 src/objects.h    V(EXTERNAL_SYMBOL_TYPE,                                                      \