[Backport #1329] Ruby 1.8.8 $B$G(B "p eval('0' + '+0.1'*n)" $B$,(B Segmentation Fault $B$rH/@8

[Shyouhei_U]

e$B%A%1%C%He(B #1329 e$B$,99?7$5$l$^$7$?!#e(B (by Shyouhei U.)

e$BC4Ev<Te(B Shyouhei U.e$B$+$ie(BKirk H.e$B$KJQ99e(B

1.8.6 also has this problem.

http://redmine.ruby-lang.org/issues/show/1329