rb_str_succ       967 include/ruby/intern.h VALUE rb_str_succ(VALUE);
rb_str_succ      9425 string.c           return rb_str_intern(rb_str_succ(rb_sym2str(sym)));
rb_str_succ      9679 string.c           rb_define_method(rb_cString, "succ", rb_str_succ, 0);
rb_str_succ      9681 string.c           rb_define_method(rb_cString, "next", rb_str_succ, 0);