rb_match_busy    1910 complex.c          rb_match_busy(backref);
rb_match_busy    2106 ext/date/date_parse.c     rb_match_busy(backref);
rb_match_busy    2522 ext/date/date_parse.c     rb_match_busy(backref);
rb_match_busy    2590 ext/date/date_parse.c     rb_match_busy(backref);
rb_match_busy    2736 ext/date/date_parse.c     rb_match_busy(backref);
rb_match_busy    2809 ext/date/date_parse.c     rb_match_busy(backref);
rb_match_busy    2955 ext/date/date_parse.c     rb_match_busy(backref);
rb_match_busy    3029 ext/date/date_parse.c     rb_match_busy(backref);
rb_match_busy     587 ext/date/date_strptime.c 		    rb_match_busy(b);
rb_match_busy     665 include/ruby/intern.h void rb_match_busy(VALUE);
rb_match_busy      58 include/ruby/re.h void rb_match_busy(VALUE);
rb_match_busy    2418 rational.c         rb_match_busy(backref);
rb_match_busy    3199 re.c               rb_match_busy(result);
rb_match_busy    3818 re.c               rb_match_busy(match);