Backport #3242: teste$B$N5-=R%_%9e(B
http://redmine.ruby-lang.org/issues/show/3242
e$B5/I<<Te(B: Yuki S.
e$B%9%F!<%?%9e(B: Assigned, e$BM%@hEYe(B: Normal
e$BC4Ev<Te(B: Yuki S.
[ruby-core:29908] e$B$G8+$D$+$C$?%F%9%H$N5-=R%_%90lMwe(B:
r27587, r27588, r27589, r27586, r27590