[Feature #1840](Rejected) Hash $B$KMWAGDI2C$7$F(B self $B$rJV$9%a%=%C%I(B

[Yui_NARUSE]

e$B%A%1%C%He(B #1840 e$B$,99?7$5$l$^$7$?!#e(B (by Yui NARUSE)

e$B%9%F!<%?%9e(B Opene$B$+$ie(BRejectede$B$KJQ99e(B

Hash#update e$B$G$$$$$G$9$h$M!#e(B

http://redmine.ruby-lang.org/issues/show/1840