SYMBOL_PINNED_P 786 symbol.c else if (!SYMBOL_PINNED_P(sym) && rb_objspace_garbage_object_p(sym)) { SYMBOL_PINNED_P 932 symbol.c if (SYMBOL_PINNED_P(name)) { SYMBOL_PINNED_P 966 symbol.c if (!SYMBOL_PINNED_P(name)) {