rb_sym_to_s 783 include/ruby/intern.h VALUE rb_sym_to_s(VALUE); rb_sym_to_s 9806 string.c rb_define_method(rb_cSymbol, "to_s", rb_sym_to_s, 0); rb_sym_to_s 9807 string.c rb_define_method(rb_cSymbol, "id2name", rb_sym_to_s, 0);