[Bug #2208](Rejected) Exception#inspect の message 部が inspect されていない

e$B%A%1%C%He(B #2208 e$B$,99?7$5$l$^$7$?!#e(B (by Yui NARUSE)

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

e$B0U?^$7$?$b$N$G$"$k$J$i$o$+$j$^$7$?!#e(B

http://redmine.ruby-lang.org/issues/show/2208