rb_ary_last      6078 array.c            rb_define_method(rb_cArray, "last", rb_ary_last, -1);
rb_ary_last      6099 gc.c               VALUE ary = rb_ary_last(0, 0, ary_ary);
rb_ary_last       833 internal.h     VALUE rb_ary_last(int, const VALUE *, VALUE);
rb_ary_last       901 range.c            return rb_ary_last(argc, argv, rb_Array(range));